Reclus (volcano)

{{Short description|Volcano located in the Patagonia Ice Field, Chile}}

{{Infobox mountain

| name = Reclus

| photo = Amalia Glacier Chile 2007-12-28.JPG

| photo_caption = Amalia Glacier with Reclus behind

| elevation_m = 1000

| elevation_ref =

| prominence =

| listing =

| location = Chile

| range = Andes

| coordinates = {{coord|50|57|50|S|73|35|05|W|type:mountain_region:CL}}

| coordinates_ref = {{sfn|Perucca|Alvarado|Saez|2016|p=553}}

| type = Cinder cone, composite volcano

| age =

| last_eruption = 1908 ± 1 year

| first_ascent =

| easiest_route =

}}

Reclus (named after Élisée Reclus; sometimes confused with Cerro Mano del Diablo southwest of Reclus), also written as Reclús, is a cinder cone and stratovolcano located in the Southern Patagonian Ice Field, Chile. Part of the Austral Volcanic Zone of the Andes, its summit rises {{Convert|1000|m}} above sea level and is capped by a crater about {{convert|1|km}} wide. Close to the volcano lies the Amalia Glacier, which is actively eroding Reclus.

The volcano has been active during the late Pleistocene and Holocene. A large eruption – among the largest known in the Austral Volcanic Zone – occurred 15,260–14,373 years before present and released over {{convert|5|km3}} of tephra. This tephra fell out over a large area of Patagonia as far as Tierra del Fuego, and disrupted the ecosystem in the region. Subsequently, further but smaller eruptions occurred during the Pleistocene and Holocene. The last historical eruption was in 1908.

The volcano is remote and monitoring began only recently. Two dams are located close to the volcano and might be impacted by future eruptions.

Geography and geology

= Regional =

South of the Chile Triple Junction, the Antarctic Plate subducts beneath the South American Plate at a rate of {{convert|2|cm/year}}. This subduction process is responsible for volcanic activity in the Austral Volcanic Zone; south of the southernmost volcano of this zone, Fueguino, the subduction gives way to strike-slip faulting. This subduction process is not accompanied by much earthquake activity.{{sfn|Stern|Kilian|1996|p=264}}

Not all volcanism at these latitudes was triggered by subduction; during the Miocene the Chile Rise was subducted here and this caused a temporary pause of the subduction process and the formation of a slab window. During this period, southern Patagonia was subject to extensive basaltic volcanism. Later subduction restarted and the Austral Volcanic Zone was born.{{sfn|Stern|Kilian|1996|p=265}}

Farther north in Chile and Argentina, volcanism occurs as a consequence of the subduction of the Nazca Plate beneath the South America Plate, forming the Central Volcanic Zone in northern Chile and Argentina and the Southern Volcanic Zone in southern Chile and Argentina. These two volcanic zones are separated from each other and the Austral Volcanic Zone by gaps without recent volcanic activity.

= Local =

Reclus is a {{convert|1000|m}} high pyroclastic cone, featuring a {{circa}} {{convert|1|km}} wide summit crater{{sfn|Perucca|Alvarado|Saez|2016|p=553}} and is a small volcano.{{sfn|Del Carlo|Di Roberto|D'Orazio|Petrelli|2018|p=155}} Seen from above, the volcano has the shape of an egg; the pointy end points due west and consists of {{convert|150|-|200|m}} thick remnants of dacitic rocks of pre- or inter-glacial age. The rest of the volcano consists of a {{convert|2000|m}} wide outcrop of violet-reddish-brown pyroclastic material that is in part covered by snow. Traces of glacial erosion are not widespread on the edifice, but a radial pattern of erosional gullys overlays the volcano.{{sfn|Harambour|1988|p=175}} In 2019, a {{convert|0.26|km3}} landslide took place on its northeastern flank, which propagated below the Amalia Glacier. Lava and pyroclastics are its principal output.{{sfn|Del Carlo|Di Roberto|D'Orazio|Petrelli|2018|p=155}}

The volcano rises within the cirque of the Amalia Glacier{{sfn|Harambour|1988|p=175}} and the glacier is actively eroding Reclus;{{sfn|Perucca|Alvarado|Saez|2016|p=553}} retreat of the glacier in the 1980s has exposed part of the volcano. Reclus lies about {{convert|10|km}} east of the Amalia Fjord.{{sfn|Harambour|1988|p=174}} The Southern Patagonian Ice Field and the Cordillera Sarmiento are found in the neighbourhood of Reclus,{{sfn|Harambour|1988|p=177}} and Torres del Paine is {{circa}} {{convert|30|km}} east of the volcano. Politically, the volcano lies in the commune of Natales.

The volcano was at first confused with Cerro Mano del Diablo, a mountain located southwest of Reclus proper and formed by sedimentary rocks;{{sfn|Harambour|1988|p=174}} only in 1987 was the volcano's true location discovered. This volcano, like other volcanoes of the Austral Volcanic Zone, is not monitored and lies at considerable distance from human habitation. This remoteness of the volcanoes in the region and the frequently hostile weather conditions often make it difficult to identify volcanoes and their precise location.{{sfn|Harambour|1988|p=173}}

Reclus is part of the Austral Volcanic Zone, a belt of volcanoes at the southernmost tip of South America which includes six volcanoes: from north to south, Lautaro, Viedma, Aguilera, Reclus, Monte Burney and Fueguino.{{sfn|Stern|Kilian|1996|p=264}} These volcanoes are not very high, seldom exceeding {{convert|3000|m}}. With the exception of the last they are all stratovolcanoes with glaciers and evidence of Holocene activity; Lautaro erupted in 1959.{{sfn|Stern|Kilian|1996|p=265}} Activity in the Austral Volcanic Zone has resulted in the widespread deposition of tephra in southernmost South America.{{sfn|Wastegård|Veres|Kliem|Hahn|2013|p=81}} All of them have erupted exclusively andesite or dacite; basalts or basaltic andesite are absent in contrast to the Southern Volcanic Zone farther north. These rocks in the case of the Austral Volcanic Zone are all of adakitic character,{{sfn|Stern|Kilian|1996|p=267}} but there does not appear to be an unifying reason for this chemistry among the various volcanoes.{{sfn|Stern|Kilian|1996|p=271}}

Aguilera, Reclus and Burney are constructed along the eastern margin of the Patagonian Batholith.{{sfn|Stern|Kilian|1996|p=265}} Metamorphic and sedimentary rocks of Paleozoic-Mesozoic age are also part of the basement. The terrain surrounding Reclus is formed by the volcanic-sedimentary El Quemado and Zapata formations.{{sfn|Harambour|1988|p=175}}

= Petrology =

The groundmass of Reclus rocks is compositionally dacite to rhyolite, and contains phenocrysts of amphibole, hornblende, orthopyroxene and plagioclase. Plagioclase and quartz also form xenocrysts.{{sfn|Stern|Kilian|1996|p=267}} The magmas of Reclus appear to form from slab melts that interacted with the mantle.{{sfn|Stern|Kilian|1996|p=280}} Tephra records indicate that magma composition changed over time.

Eruptive history

Reclus together with Aguilera, Hudson and Monte Burney has been a major source of tephra for the region of Tierra del Fuego and Patagonia.{{sfn|Del Carlo|Di Roberto|D'Orazio|Petrelli|2018|p=154}} Tephra layers discovered in Laguna Potrok Aike and dated to 63,200 years ago,{{sfn|Smith|Smith|Fontijn|Gebhardt|2019|p=151}} 44,000–51,000{{sfn|Wastegård|Veres|Kliem|Hahn|2013|pp=86–87}} and {{circa}} 34,000 years ago may come from Reclus. However, the potassium content of the 51,000-44,000 tephra seems to correlate more with Lautaro or Viedma.{{sfn|Wastegård|Veres|Kliem|Hahn|2013|pp=86–87}}

The first post-glacial Reclus tephra in Laguna Potrok Aike was emplaced 15,700 years ago, soon before the R1 eruption.{{sfn|Smith|Smith|Fontijn|Gebhardt|2019|p=151}} About four eruptions took place during the past 15,000 years that deposited ash in the Torres del Paine region.{{sfn|Moreno|François|Villa-Martínez|Moy|2009|p=36}} In general, distinguishing Reclus tephras from these of Aguilera, Lautaro or Viedma is difficult.{{sfn|Smith|Smith|Fontijn|Gebhardt|2019|p=149}}

= R1 eruption =

A large eruption, called "R1", occurred at the end of the Last Glacial Maximum at Reclus.{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=83}} It was dated by radiocarbon dating to have occurred 12,640 ± 260 radiocarbon years ago.{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=92}}{{efn|Equivalent to 15,260–14,373 years Before Present{{sfn|Smith|Smith|Fontijn|Gebhardt|2019|p=138}}{{sfn|Stern|2008|p=445}}}} Its total volume has been estimated at over {{convert|5|km3}}{{efn|Originally it was estimated to be over {{convert|10|km}},{{sfn|Stern|2008|p=435}} but this estimate was later found to be a mathematical error{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=92}}}} and with a volcanic explosivity index of 6 it is among the largest volcanic eruptions of the Austral Volcanic Zone, exceeding that of Holocene eruptions in the region, including the 1991 eruption of Cerro Hudson{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=92}} and possibly even the 1932 Quizapu eruption.

The R1 tephra, originally identified in Patagonia as "Tephra A",{{sfn|Stern|2008|p=436}} was deposited at various sites in southernmost Chile and Argentina such as Bahía Inutil,{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=83}} Brunswick Peninsula, Cardiel Lake, Cueva del Medio, Dawson Island,{{sfn|McCulloch|Davies|2001|p=148}} East Falkland, Estrecho de Magellanes,{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=83}} Fitzroy Channel, Muñoz Gamero Peninsula, Laguna Potrok Aike,{{sfn|Wastegård|Veres|Kliem|Hahn|2013|p=84}}{{efn|Where it is about {{convert|1.5|m}} thick. However, this occurrence of Reclus tephra seems to be younger than the R1 eruption and may reflect complexity in the history of this volcano{{sfn|Wastegård|Veres|Kliem|Hahn|2013|p=84}}}} Puerto del Hambre,{{sfn|McCulloch|Davies|2001|p=148}} Río Rubens in Patagonia, Seno Otway, Seno Skyring, Grey Glacier and Tyndal Glacier of the Southern Patagonian Ice Shield, Tierra del Fuego and in the Última Esperanza Province.{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=84}} Other potential findings are at Dawson Island{{sfn|Mcculloch|Bentley|1998|p=782}} and Punta Arenas.{{sfn|Mcculloch|Bentley|1998|p=781}} Some of these deposits were formed by tephra that originally fell onto glaciers and was later transported to the eventual finding sites, other sites were covered by ice and thus did not accumulate any Reclus tephras. The tephra emission from this and later eruptions surely disrupted the local ecosystem and human habitations in the region as far south as Tierra del Fuego,{{sfn|McCulloch|Davies|2001|p=155,166}} possibly causing the extinction of a regional vicuña population in Patagonia.{{sfn|Villavicencio|Lindsey|Martin|Borrero|2016|p=137}}

The composition of the tephra varies between different outcrops; outcrops in Tierra del Fuego lack biotite unlike closer deposits.{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=86}} These deposits have been used as stratigraphic and chronological markers for events at the end of the last glaciation in the region.{{sfn|Stern|Moreno|Villa-Martinez|Sagredo|2011|p=83}} Ice cores taken at Taylor Dome in Antarctica display a spike in {{chem|link=Sulfur dioxide|S|O|2}} about 16,000 years ago, which may have originated at Reclus.

= Late Pleistocene and Holocene =

A set of tephras discovered at Torres del Paine,{{sfn|Stern|2008|p=446}} Nordenskjöld Lake and other locations in Patagonia and emplaced between 8,270 ± 90 and 9,435 ± 40 radiocarbon years ago may have originated in minor eruptions of Reclus.{{sfn|Stern|2008|p=440}} One of these eruptions, at 9,180 ± 120 radiocarbon years ago, might have deposited ash as far as Tierra del Fuego.

A 3,780 year old peat has been covered by tephra at least six times. Eruptions have also been inferred from tephra deposits elsewhere:

12,480 years before present also and deposited ash in Tierra del Fuego.
10,430 years before present, found in Torres del Paine.
9,624 years before present, found in Torres del Paine.
A tephra with an age of 10,600–10,200 also comes from Reclus and originated in an eruption smaller than the R1 event.{{sfn|Villavicencio|Lindsey|Martin|Borrero|2016|p=132}}
A tephra dated to 2,000 years before present in Torres del Paine have been attributed to Reclus. The tephra has been found in Lago Guanaco, Lago Margarita, Pantano Margarita (possibly) and Vega Nandú.{{sfn|Moy|Dunbar|Moreno|Francois|2008|p=1340}}{{sfn|Moreno|François|Villa-Martínez|Moy|2009|p=34}}
A tephra dated 1,789 radiocarbon years ago in Lago Guanaco, Torres del Paine,{{sfn|Moy|Dunbar|Moreno|Francois|2008|p=1339}} and close to Lago el Toro. Much less extensive than R1, it has been called "R2 tephra".{{sfn|Del Carlo|Di Roberto|D'Orazio|Petrelli|2018|p=155}}
Another tephra dated 1,035 radiocarbon years ago in Lago Guanaco, Torres del Paine,{{sfn|Moy|Dunbar|Moreno|Francois|2008|p=1339}} and Pantano Margarita.{{sfn|Moreno|François|Villa-Martínez|Moy|2009|p=34}} Also much less extensive than R1, it has been called "R3 tephra".{{sfn|Del Carlo|Di Roberto|D'Orazio|Petrelli|2018|p=155}}
Finally, a tephra in Lake Arthuro of Santa Inés Island appears to come from an eruption at Reclus 1,040 years before present.
In 2019, the occurrence of a 1458 AD eruption was proposed to explain the presence of sulfate deposits in Antarctic ice cores that were previously attributed to Kuwae.

A tephra identified in an ice core at Talos Dome, Antarctica, and emplaced there 3,390 years before present is compositionally similar to Reclus products. However, there is little evidence for large eruptions at Reclus during the late Holocene and the Puyehue-Cordón Caulle volcano in the Southern Volcanic Zone has been proposed as a source for this tephra.

= Historical activity =

In 1879, sailors on {{HMS|Alert|1856|6}} observed a volcanic eruption in an icefield and named the volcano Reclus after Élisée Reclus,{{sfn|Harambour|1988|p=174}} but the Global Volcanism Program indicates that an earlier eruption occurred in 1869. The volcano first appeared in the 1922 edition of the map West Coast of South América from Magellan Strait to Valparaíso. Legends of the Tehuelche people about "black smoke" in the region could also refer to volcanic activity at Reclus.

The last recorded eruption of Reclus was in 1908,{{sfn|Perucca|Alvarado|Saez|2016|p=553}} but local press reports in the 1980s and 1990s attributed earthquakes to volcanic activity at Reclus and Burney. Seismic activity was noted at Reclus in 1998, 2003{{sfn|Perucca|Alvarado|Saez|2016|p=557}} and 2020. Possible eruption phenomena were reported in 2008 in form of tephra deposition and cracks in the glaciers, and a landslide occurred on its northern side in 2017. In 2015, the Chilean SERNAGEOMIN announced that they would install an experimental surveillance system at Reclus and in 2020 it was classified as a "type III" volcano, meaning a high-hazard volcano. Ash from a future eruption of Reclus could be swept into the reservoirs of Néstor Kirchner Dam and Jorge Cepernic Dam on the Santa Cruz River, impacting their activity.

Notes

References

{{Reflist|30em|refs=

{{cite journal |last1=Moreno |first1=P.I. |last2=Kaplan |first2=M.R. |last3=François |first3=J.P. |last4=Villa-Martínez |first4=R. |last5=Moy |first5=C.M. |last6=Stern |first6=C.R. |last7=Kubik |first7=P.W. |title=Renewed glacial activity during the Antarctic cold reversal and persistence of cold conditions until 11.5 ka in southwestern Patagonia |journal=Geology |date=1 April 2009 |volume=37 |issue=4 |page=377 |doi=10.1130/G25399A.1 |url=https://pubs.geoscienceworld.org/gsa/geology/article-abstract/37/4/375/29950 |issn=0091-7613|hdl=10533/135238 |hdl-access=free }}

{{cite journal |last1=Zhu |first1=Jiayun |last2=Lücke |first2=Andreas |last3=Wissel |first3=Holger |last4=Müller |first4=Daniela |last5=Mayr |first5=Christoph |last6=Ohlendorf |first6=Christian |last7=Zolitschka |first7=Bernd |title=The last Glacial–Interglacial transition in Patagonia, Argentina: the stable isotope record of bulk sedimentary organic matter from Laguna Potrok Aike |journal=Quaternary Science Reviews |date=July 2013 |volume=71 |page=215 |doi=10.1016/j.quascirev.2012.05.025}}

{{cite journal |last1=Martin |first1=Fabiana M. |last2=Todisco |first2=Dominique |last3=Rodet |first3=Joël |last4=San Román |first4=Manuel |last5=Morello |first5=Flavia |last6=Prevosti |first6=Francisco |last7=Stern |first7=Charles |last8=Borrero |first8=Luis A. |title=Nuevas excavaciones en Cueva del Medio: Procesos de formación de la cueva y avances en los estudios de interacción entre cazadores-recolectores y fauna extinta (Pleistoceno Final, Patagonia Meridional) |journal=Magallania (Punta Arenas) |date=2015 |volume=43 |issue=1 |page=178 |doi=10.4067/S0718-22442015000100010 |url=https://www.scielo.cl/scielo.php?pid=S0718-22442015000100010&script=sci_arttext&tlng=pt |issn=0718-2244|hdl=11336/46105 |hdl-access=free }}

{{cite journal |last1=Moreno |first1=Patricio I. |last2=Vilanova |first2=I. |last3=Villa-Martínez |first3=R. |last4=Garreaud |first4=R. D. |last5=Rojas |first5=M. |last6=De Pol-Holz |first6=R. |title=Southern Annular Mode-like changes in southwestern Patagonia at centennial timescales over the last three millennia |journal=Nature Communications |date=10 July 2014 |volume=5 |issue=1 |page=6 |doi=10.1038/ncomms5375|hdl=11336/20947 |hdl-access=free }}

{{cite journal |last1=Haberzettl |first1=Torsten |last2=Anselmetti |first2=Flavio S. |last3=Bowen |first3=Sabine W. |last4=Fey |first4=Michael |last5=Mayr |first5=Christoph |last6=Zolitschka |first6=Bernd |last7=Ariztegui |first7=Daniel |last8=Mauz |first8=Barbara |last9=Ohlendorf |first9=Christian |last10=Kastner |first10=Stephanie |last11=Lücke |first11=Andreas |last12=Schäbitz |first12=Frank |last13=Wille |first13=Michael |title=Late Pleistocene dust deposition in the Patagonian steppe - extending and refining the paleoenvironmental and tephrochronological record from Laguna Potrok Aike back to 55 ka |journal=Quaternary Science Reviews |date=December 2009 |volume=28 |issue=25-26 |page=2931 |doi=10.1016/j.quascirev.2009.07.021}}

{{cite journal |last1=Haberzettl |first1=Torsten |last2=Kück |first2=Barbara |last3=Wulf |first3=Sabine |last4=Anselmetti |first4=Flavio |last5=Ariztegui |first5=Daniel |last6=Corbella |first6=Hugo |last7=Fey |first7=Michael |last8=Janssen |first8=Stephanie |last9=Lücke |first9=Andreas |last10=Mayr |first10=Christoph |last11=Ohlendorf |first11=Christian |last12=Schäbitz |first12=Frank |last13=Schleser |first13=Gerhard H. |last14=Wille |first14=Michael |last15=Zolitschka |first15=Bernd |title=Hydrological variability in southeastern Patagonia and explosive volcanic activity in the southern Andean Cordillera during Oxygen Isotope Stage 3 and the Holocene inferred from lake sediments of Laguna Potrok Aike, Argentina |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |date=March 2008 |volume=259 |issue=2-3 |page=223 |doi=10.1016/j.palaeo.2007.10.008|hdl=11336/135702 |hdl-access=free }}

{{Cite book |last1=Politis |first1=Gustavo G. |url=https://www.cambridge.org/core/books/archaeology-of-the-pampas-and-patagonia/ABA3E00D1D0F6C61B8BB94F62FC29817 |title=The Archaeology of the Pampas and Patagonia |last2=Borrero |first2=Luis A. |date=2024 |publisher=Cambridge University Press |isbn=978-0-521-76821-4 |series=Cambridge World Archaeology |location=Cambridge|page=148}}

{{Cite book |url=https://link.springer.com/10.1007/978-3-031-39408-9 |title=Conservation in Chilean Patagonia: Assessing the State of Knowledge, Opportunities, and Challenges |date=2023 |publisher=Springer International Publishing |isbn=978-3-031-39407-2 |editor-last=Castilla |editor-first=Juan Carlos |series=Integrated Science |volume=19 |location=Cham |language=en |doi=10.1007/978-3-031-39408-9 |editor-last2=Armesto Zamudio |editor-first2=Juan J. |editor-last3=Martínez-Harms |editor-first3=María José |editor-last4=Tecklin |editor-first4=David|pages=400–401}}

{{cite journal |last1=Ammirati |first1=Jean-Baptiste |last2=Azúa |first2=Kellen |last3=Pastén-Araya |first3=Francisco |last4=Richter |first4=Andreas |last5=Wiens |first5=Douglas A. |last6=Flores |first6=María Constanza |last7=Ruiz |first7=Sergio |last8=Guzmán-Marín |first8=Pedro |last9=Lanza |first9=Federica |last10=Sielfeld |first10=Gerd |title=Fault reactivation linked to rapid ice-mass removal from the Southern Patagonian Icefield (48–52°S) |journal=Tectonophysics |date=May 2024 |volume=880 |pages=3–4 |doi=10.1016/j.tecto.2024.230320|doi-access=free }}

{{cite journal |last1=Van Wyk de Vries |first1=Maximillian |last2=Wickert |first2=Andrew D. |last3=MacGregor |first3=Kelly R. |last4=Rada |first4=Camilo |last5=Willis |first5=Michael J. |title=Atypical landslide induces speedup, advance, and long-term slowdown of a tidewater glacier |journal=Geology |date=26 April 2022 |page=806 |doi=10.1130/G49854.1 |url=https://pubs.geoscienceworld.org/gsa/geology/article/50/7/806/613387/Atypical-landslide-induces-speedup-advance-and|doi-access=free |hdl=10919/118100 |hdl-access=free }}

{{cite web |title=Sernageomin da a conocer nuevo ranking de volcanes |work=SERNAGEOMIN |url=https://www.sernageomin.cl/sernageomin-da-a-conocer-nuevo-ranking-de-volcanes/ |access-date=5 December 2021 |language=es |date=20 February 2020}}

{{cite journal |last1=Hartman |first1=Laura H. |last2=Kurbatov |first2=Andrei V. |last3=Winski |first3=Dominic A. |last4=Cruz-Uribe |first4=Alicia M. |last5=Davies |first5=Siwan M. |last6=Dunbar |first6=Nelia W. |last7=Iverson |first7=Nels A. |last8=Aydin |first8=Murat |last9=Fegyveresi |first9=John M. |last10=Ferris |first10=David G. |last11=Fudge |first11=T. J. |last12=Osterberg |first12=Erich C. |last13=Hargreaves |first13=Geoffrey M. |last14=Yates |first14=Martin G. |title=Volcanic glass properties from 1459 C.E. volcanic event in South Pole ice core dismiss Kuwae caldera as a potential source |journal=Scientific Reports |date=8 October 2019 |volume=9 |issue=1 |pages=14437 |doi=10.1038/s41598-019-50939-x |pmid=31595040 |pmc=6783439 |bibcode=2019NatSR...914437H |language=en |issn=2045-2322}}

{{cite journal |last1=Monteath |first1=A. J. |last2=Hughes |first2=P. D. M. |last3=Wastegård |first3=S. |title=Evidence for distal transport of reworked Andean tephra: Extending the cryptotephra framework from the Austral volcanic zone |journal=Quaternary Geochronology |date=1 April 2019 |volume=51 |page=69 |doi=10.1016/j.quageo.2019.01.003 |bibcode=2019QuGeo..51...64M |s2cid=133857028 |issn=1871-1014|url=https://eprints.soton.ac.uk/429210/1/Falkland_s_tephra_Manuscript_Final_.pdf }}

{{cite web|title=Sernageomin comienza marcha blanca para monitoreo del volcán Burney|url=http://www.intendenciamagallanes.gov.cl/noticias/sernageomin-comienza-marcha-blanca-para-monitoreo-del-volcan-burney/|website=Intendencia Región de Magallanes y de la Antárctica Chilena|language=es|date=6 November 2015}}

{{cite web|url=http://www.santacruz.gov.ar/ambiente/audiencia_publica/Rio_Santa_Cruz/Cap.%2004%20-%20LBA/(4-04)%20EIA%20PRESAS%20SC%20-%20Cap.%2004%20LBA%20-%20P.%2004%20Geolog%C3%ADa%20-%20Rev0.pdf|title=ESTUDIO DE IMPACTO AMBIENTAL APROVECHAMIENTOS HIDROELÉCTRICOS DEL RÍO SANTA CRUZ (PRESIDENTE DR.NÉSTOR C.KIRCHNER Y GOBERNADOR JORGE CEPERNIC), PROVINCIA DE SANTA CRUZ|last=Goyenechea|first=Cristina|date=2017|website=Provincia de Santa Cruz: Medio Ambiente|pages=80–81|language=es}}

{{cite web|url=http://sitiohistorico.sernageomin.cl/detalle-noticia.php?iIdNoticia=225|archive-url=https://web.archive.org/web/20180513153407/http://sitiohistorico.sernageomin.cl/detalle-noticia.php?iIdNoticia=225|url-status=dead|archive-date=May 13, 2018|title=Evalúan necesidad de nuevos observatorios como siguiente paso de la vigilancia volcánica|language=es|date=4 June 2015|website=SERNAGEOMIN}}

{{Cite journal|last1=Cusminsky|first1=Gabriela|last2=Schwalb|first2=Antje|last3=Pérez|first3=Alejandra P.|last4=Pineda|first4=Daniela|last5=Viehberg|first5=Finn|last6=Whatley|first6=Robin|last7=Markgraf|first7=Vera|last8=Gilli|first8=Andrea|last9=Ariztegui|first9=Daniel|date=2011-06-01|title=Late quaternary environmental changes in Patagonia as inferred from lacustrine fossil and extant ostracods|journal=Biological Journal of the Linnean Society|volume=103|issue=2|page=405|doi=10.1111/j.1095-8312.2011.01650.x|issn=1095-8312|doi-access=free}}

{{Cite book|url=https://books.google.com/books?id=sFQABAAAQBAJ&q=reclus&pg=PP1|title=Patagonia: Natural History, Prehistory, and Ethnography at the Uttermost End of the Earth|last1=McEwan|first1=Colin|last2=Borrero|first2=Luis A.|last3=Prieto|first3=Alfredo|date=2014-07-14|publisher=Princeton University Press|isbn=9781400864768|page=24}}

{{Cite journal|last1=Miotti|first1=L.|last2=Salemme|first2=M. C.|date=2003-01-01|title=When Patagonia was colonized: people mobility at high latitudes during Pleistocene/Holocene transition|journal=Quaternary International|series=SOUTH AMERICA: LONG AND WINDING ROADS FOR THE FIRST AMERICANS AT THE PLEISTOCENE/HOLOCENE TRANSITION|volume=109|page=103|doi=10.1016/S1040-6182(02)00206-9|bibcode=2003QuInt.109...95M}}

{{Cite journal|last=Martinic|first=Mateo|date=1988-12-01|title=Actividad volcanica historica en la Region de Magallanes|url=http://www.rgeologica.equipu.cl/index.php/revista1/article/view/V15n2-a07|archive-url=https://web.archive.org/web/20170113161352/http://www.rgeologica.equipu.cl/index.php/revista1/article/view/V15n2-a07|url-status=dead|archive-date=January 13, 2017|journal=Andean Geology|volume=15|issue=2|page=184|issn=0718-7106|language=es}}

{{Cite journal|last1=Markgraf|first1=Vera|last2=Huber|first2=Ulli M.|date=2010-11-10|title=Late and postglacial vegetation and fire history in Southern Patagonia and Tierra del Fuego|journal=Palaeogeography, Palaeoclimatology, Palaeoecology|volume=297|issue=2|page=357|doi=10.1016/j.palaeo.2010.08.013|bibcode=2010PPP...297..351M}}

{{Cite journal|last1=Fogwill|first1=C. J.|last2=Kubik|first2=P. W.|date=2005-06-01|journal=Geografiska Annaler: Series A, Physical Geography|volume=87|issue=2|page=407|doi=10.1111/j.0435-3676.2005.00266.x|issn=1468-0459|title=A glacial stage spanning the antarctic cold reversal in torres del paine (51°s), chile, based on preliminary cosmogenic exposure ages|bibcode=2005GeAnA..87..403F |s2cid=128400121}}

{{Cite journal|last1=Breuer|first1=Sonja|last2=Kilian|first2=Rolf|last3=Baeza|first3=Oscar|last4=Lamy|first4=Frank|last5=Arz|first5=Helge|date=2013-04-01|title=Holocene denudation rates from the superhumid southernmost Chilean Patagonian Andes (53°S) deduced from lake sediment budgets|journal=Geomorphology|volume=187|page=146|doi=10.1016/j.geomorph.2013.01.009|bibcode=2013Geomo.187..135B}}

{{Cite journal|last1=Moreno|first1=P. I.|last2=Villa-Martínez|first2=R.|last3=Cárdenas|first3=M. L.|last4=Sagredo|first4=E. A.|date=2012-05-18|title=Deglacial changes of the southern margin of the southern westerly winds revealed by terrestrial records from SW Patagonia (52°S)|journal=Quaternary Science Reviews|volume=41|page=6|doi=10.1016/j.quascirev.2012.02.002|bibcode=2012QSRv...41....1M|hdl=10533/131334|hdl-access=free}}

{{Cite journal|last1=Martin|first1=Fabiana María|last2=Borrero|first2=Luis Alberto|date=2017-01-15|title=Climate change, availability of territory, and Late Pleistocene human exploration of Ultima Esperanza, South Chile|journal=Quaternary International|series=The Frison Institute symposium: International perspectives on climate change and Archaeology|volume=428, Part B|page=88|doi=10.1016/j.quaint.2015.06.023|bibcode=2017QuInt.428...86M|hdl=11336/38571|hdl-access=free}}

{{Cite journal|last1=Villa-Martínez|first1=Rodrigo|last2=Moreno|first2=Patricio I.|date=2007-11-01|title=Pollen evidence for variations in the southern margin of the westerly winds in SW Patagonia over the last 12,600 years|url=http://www.sciencedirect.com/science/article/pii/S0033589407000889|journal=Quaternary Research|volume=68|issue=3|page=404|doi=10.1016/j.yqres.2007.07.003|bibcode=2007QuRes..68..400V|s2cid=54974299}}

{{Cite journal|last=Martinic|first=Mateo B|date=November 2008|journal=Magallania (Punta Arenas)|volume=36|issue=2|pages=5–18|doi=10.4067/S0718-22442008000200001|issn=0718-2244|language=es|title=Registro Histórico de Antecedentes Volcánicos y Sísmicos en la Patagonia Austral y la Tierra del Fuego|doi-access=free}}

{{Cite journal|last1=Kilian|first1=R.|last2=Baeza|first2=O.|last3=Breuer|first3=S.|last4=Ríos|first4=F.|last5=Arz|first5=H.|last6=Lamy|first6=F.|last7=Wirtz|first7=J.|last8=Baque|first8=D.|last9=Korf|first9=P.|date=2013|title=Evolución Paleogeográfica y Paleoecológica del Sistema de Fiordos del Seno Skyring y Seno Otway en la Región de Magallanes Durante el Tardiglacial y Holoceno|journal=Anales del Instituto de la Patagonia|volume=41|issue=2|pages=5–26|doi=10.4067/S0718-686X2013000200001|issn=0718-686X|doi-access=free|hdl=20.500.11850/121386|hdl-access=free}}

{{Cite journal|last1=Narcisi|first1=Biancamaria|last2=Petit|first2=Jean Robert|last3=Delmonte|first3=Barbara|last4=Scarchilli|first4=Claudio|last5=Stenni|first5=Barbara|date=2012-08-23|title=A 16,000-yr tephra framework for the Antarctic ice sheet: a contribution from the new Talos Dome core|journal=Quaternary Science Reviews|volume=49|page=60|doi=10.1016/j.quascirev.2012.06.011|bibcode=2012QSRv...49...52N}}

{{Cite journal|last1=García|first1=Juan-Luis|last2=Strelin|first2=Jorge A.|last3=Vega|first3=Rodrigo M.|last4=Hall|first4=Brenda L.|last5=Stern|first5=Charles R.|date=May 2015|title=Ambientes glaciolacustres y construcción estructural de morrenas frontales tardiglaciales en Torres del Paine, Patagonia austral chilena|journal=Andean Geology|volume=42|issue=2|pages=190–212|doi=10.5027/andgeoV42n2-a03|issn=0718-7106|doi-access=free}}

{{Cite journal|last=Stern|first=Charles R.|date=December 2004|title=Active Andean volcanism: its geologic and tectonic setting|journal=Revista Geológica de Chile|volume=31|issue=2|pages=161–206|doi=10.4067/S0716-02082004000200001|issn=0716-0208|doi-access=free}}

{{Cite journal|last1=Kilian|first1=Rolf|last2=Hohner|first2=Miriam|last3=Biester|first3=Harald|last4=Wallrabe-Adams|first4=Hans J.|last5=Stern|first5=Charles R.|date=July 2003|title=Holocene peat and lake sediment tephra record from the southernmost Chilean Andes (53–55°S)|journal=Revista Geológica de Chile|volume=30|issue=1|pages=23–37|doi=10.4067/S0716-02082003000100002|issn=0716-0208|doi-access=free}}

}}

= Sources =

{{cite journal|last1=Del Carlo|first1=Paola|last2=Di Roberto|first2=Alessio|last3=D'Orazio|first3=Massimo|last4=Petrelli|first4=Maurizio|last5=Angioletti|first5=Andrea|last6=Zanchetta|first6=Giovanni|last7=Maggi|first7=Valter|last8=Daga|first8=Romina|last9=Nazzari|first9=Manuela|last10=Rocchi|first10=Sergio|title=Late Glacial-Holocene tephra from southern Patagonia and Tierra del Fuego (Argentina, Chile): A complete textural and geochemical fingerprinting for distal correlations in the Southern Hemisphere|journal=Quaternary Science Reviews|date=September 2018|volume=195|pages=153–170|doi=10.1016/j.quascirev.2018.07.028|bibcode=2018QSRv..195..153D|hdl=11568/926084 |s2cid=135055583|language=en|issn=0277-3791|hdl-access=free}}
{{Cite journal|last=Harambour|first=Salvador M.|date=1988-12-01|title=Sobre el hallazgo del mitico volcan Reclus, ex Mano del Diablo, Hielo Patagonico Sur, Magallanes, Chile|url=http://www.rgeologica.equipu.cl/index.php/revista1/article/view/V15n2-a06|archive-url=https://web.archive.org/web/20180124070934/http://www.rgeologica.equipu.cl/index.php/revista1/article/view/V15n2-a06|url-status=dead|archive-date=January 24, 2018|journal=Andean Geology|volume=15|issue=2|pages=173–179|issn=0718-7106|language=es}}
{{Cite journal|last1=Mcculloch|first1=Robert D|last2=Bentley|first2=Michael J|date=1998-08-01|title=Late glacial ice advances in the Strait of Magellan, southern Chile|journal=Quaternary Science Reviews|volume=17|issue=8|pages=775–787|doi=10.1016/S0277-3791(97)00074-7|bibcode=1998QSRv...17..775M}}
{{Cite journal|last1=McCulloch|first1=Robert D.|last2=Davies|first2=Sarah J.|date=2001-09-15|title=Late-glacial and Holocene palaeoenvironmental change in the central Strait of Magellan, southern Patagonia|journal=Palaeogeography, Palaeoclimatology, Palaeoecology|volume=173|issue=3|pages=143–173|doi=10.1016/S0031-0182(01)00316-9|bibcode=2001PPP...173..143M}}
{{cite journal |last1=Moreno |first1=P.I. |last2=François |first2=J.P. |last3=Villa-Martínez |first3=R.P. |last4=Moy |first4=C.M. |title=Millennial-scale variability in Southern Hemisphere westerly wind activity over the last 5000 years in SW Patagonia |journal=Quaternary Science Reviews |date=January 2009 |volume=28 |issue=1-2 |pages=25–38 |doi=10.1016/j.quascirev.2008.10.009|hdl=10533/131331 |hdl-access=free }}
{{Cite journal|last1=Moy|first1=Christopher M.|last2=Dunbar|first2=Robert B.|last3=Moreno|first3=Patricio I.|last4=Francois|first4=Jean-Pierre|last5=Villa-Martínez|first5=Rodrigo|last6=Mucciarone|first6=David M.|last7=Guilderson|first7=Thomas P.|last8=Garreaud|first8=René D.|date=2008-07-01|title=Isotopic evidence for hydrologic change related to the westerlies in SW Patagonia, Chile, during the last millennium|journal=Quaternary Science Reviews|volume=27|issue=13|pages=1335–1349|doi=10.1016/j.quascirev.2008.03.006|bibcode=2008QSRv...27.1335M|hdl=10533/139767|hdl-access=free}}
{{Cite journal|last1=Perucca|first1=Laura|last2=Alvarado|first2=Patricia|last3=Saez|first3=Mauro|date=2016-07-01|title=Neotectonics and seismicity in southern Patagonia|journal=Geological Journal|volume=51|issue=4|pages=545–559|doi=10.1002/gj.2649|bibcode=2016GeolJ..51..545P |s2cid=128998425 |issn=1099-1034|hdl=11336/12998|hdl-access=free}}
{{cite journal |last1=Smith |first1=Rebecca E. |last2=Smith |first2=Victoria C. |last3=Fontijn |first3=Karen |last4=Gebhardt |first4=A. Catalina |last5=Wastegård |first5=Stefan |last6=Zolitschka |first6=Bernd |last7=Ohlendorf |first7=Christian |last8=Stern |first8=Charles |last9=Mayr |first9=Christoph |title=Refining the Late Quaternary tephrochronology for southern South America using the Laguna Potrok Aike sedimentary record |journal=Quaternary Science Reviews |date=15 August 2019 |volume=218 |pages=137–156 |doi=10.1016/j.quascirev.2019.06.001 |bibcode=2019QSRv..218..137S |issn=0277-3791|doi-access=free |hdl=2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/288731 |hdl-access=free }}
{{Cite journal|last=Stern|first=Charles R.|date=2008-02-01|title=Holocene tephrochronology record of large explosive eruptions in the southernmost Patagonian Andes|journal=Bulletin of Volcanology|volume=70|issue=4|pages=435–454|doi=10.1007/s00445-007-0148-z|bibcode=2008BVol...70..435S|issn=0258-8900|hdl=10533/139124|s2cid=140710192|hdl-access=free}}
{{Cite journal|last1=Stern|first1=C. R.|last2=Kilian|first2=Rolf|date=1996-04-01|title=Role of the subducted slab, mantle wedge and continental crust in the generation of adakites from the Andean Austral Volcanic Zone|journal=Contributions to Mineralogy and Petrology|volume=123|issue=3|pages=263–281|doi=10.1007/s004100050155|bibcode=1996CoMP..123..263S|s2cid=59944205|issn=0010-7999}}
{{Cite journal|last1=Stern|first1=Charles R.|last2=Moreno|first2=Patricio I.|last3=Villa-Martinez|first3=Rodrigo|last4=Sagredo|first4=Esteban A.|last5=Prieto|first5=Alfredo|last6=Labarca|first6=Rafael|date=2011-03-22|title=Evolution of ice-dammed proglacial lakes in ultima Esperanza, Chile: implications from the late-glacial R1 eruption of Reclus volcano, Andean Austral Volcanic Zone|url=http://www.andeangeology.cl/index.php/revista1/article/view/V38n1-a06|journal=Andean Geology|volume=38|issue=1|pages=82–97|doi=10.5027/andgeoV38n1-a06|issn=0718-7106|doi-access=free|hdl=10533/138795|hdl-access=free}}
{{Cite journal|last1=Villavicencio|first1=Natalia A.|last2=Lindsey|first2=Emily L.|last3=Martin|first3=Fabiana M.|last4=Borrero|first4=Luis A.|last5=Moreno|first5=Patricio I.|last6=Marshall|first6=Charles R.|last7=Barnosky|first7=Anthony D.|date=2016-02-01|title=Combination of humans, climate, and vegetation change triggered Late Quaternary megafauna extinction in the Última Esperanza region, southern Patagonia, Chile|journal=Ecography|volume=39|issue=2|pages=125–140|doi=10.1111/ecog.01606|issn=1600-0587|doi-access=free|bibcode=2016Ecogr..39..125V }}
{{Cite journal|last1=Wastegård|first1=S.|last2=Veres|first2=D.|last3=Kliem|first3=P.|last4=Hahn|first4=A.|last5=Ohlendorf|first5=C.|last6=Zolitschka|first6=B.|date=2013-07-01|title=Towards a late Quaternary tephrochronological framework for the southernmost part of South America – the Laguna Potrok Aike tephra record|journal=Quaternary Science Reviews|series=Potrok Aike Maar Lake Sediment Archive Drilling Project (PASADO)|volume=71|pages=81–90|doi=10.1016/j.quascirev.2012.10.019|bibcode=2013QSRv...71...81W}}