Mount Masurai
{{Short description|Volcano in Sumatra, Indonesia}}
{{Infobox mountain
| name = Mount Masurai
| other_name = Gunung Masurai
| photo = Mt Masurai (201293087).jpeg
| photo_caption = Masurai as seen from Lubuk Pungguk Village, Jangkat
| elevation_m = 2916
| elevation_ref =
| prominence_m = 2916
| prominence_ref =
| map = Indonesia Sumatra
| map_caption =
| label_position = right
| listing = Ultra
Ribu
| location = Sumatra, Indonesia
| range = Barisan Mountains
| coordinates = {{coord|02|30|09|S|101|51|30|E|type:mountain_scale:100000|display=inline,title}}
| coordinates_ref =
| topo =
| type = Stratovolcano
| age =
| volcanic_arc/belt = Pacific Ring of Fire
| last_eruption = Pleistocene
| first_ascent =
| easiest_route =
}}
Mount Matsurai, natively known as Gunung Masurai, is a large complex of inactive stratovolcanoes in Jambi, Sumatra, Indonesia. The volcano attains an elevation of {{cvt|2,916|m}} above sea level.{{cite gvp |1=261819 |2=Masurai}}
Geology
Mount Masurai is part of the greater Barisan Mountains, which formed due to offshore subduction of the Indo-Australian Plate beneath the Sunda Plate along the Sunda megathrust. The volcanic comples is situated in the Sungai Penuh pull-apart basin; caused by offsets along two segments of the Great Sumatran fault. In the southern section of the basin, closer to Mount Masurai, the basin becomes wider.{{cite journal |author1=Hirofumi Muraoka |author2=Masaaki Takahashi |author3=Herry Sundhoro |author4=Sjafra Dwipa |author5=Yoshio Soeda |author6=Manabu Momita |author7=Kanichi Shimada |title=Geothermal Systems Constrained by the Sumatran Fault and Its Pull-Apart Basins in Sumatra, Western Indonesia |journal=Proceedings World Geothermal Congress 2010 |date=2010 |url=https://www.geothermal-energy.org/pdf/IGAstandard/WGC/2010/1248.pdf}}
Mount Matsurai contains two crater lakes; Kumbang Lake and Merbuk Lake; near the summit cone. The summit cone occupies the western remnant of a half-caldera, 7 km in diameter. The rim of the half-caldera is at an altitude of {{cvt|2,000|m}}–{{cvt|2,250|m}}. A third lake, Blue Lake, located in the caldera, is thought to be remnants of a parasitic eruption; one of many around the area.{{cite journal |author1=Asep Rohiman |author2=Dipowiguno Prijanto |author3=Arief Prabowo |author4=Antonius Ratdomopurbo |author5=Ruly Setiawan |author6=Mutiara Effendi |author7=Eko Wahyudi |title=Geochemical Characteristics of Volcanic Rocks from The Mt.Masurai's Caldera, Jambi, Indonesia |journal=Journal of Physics: Conference Series |date=2017 |volume=1204 |issue=12070 |page=012070 |doi=10.1088/1742-6596/1204/1/012070 |s2cid=164449741 |doi-access=free }}
Flora
Two species of tropical carnivorous pitcher plants; Nepenthes spathulata and Nepenthes singalana notably overlap each other. The plants, which cannot be definitively assigned to either appear intermediate in form between these two species. It was discovered by botanist Charles Clarke, and written in his monograph Nepenthes of Sumatra and Peninsular Malaysia.Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
Climbing
Kumbang Lake is a popular feature of the volcano, often visited by climbers on their way to the summit.{{cite web |author1=Wildan Carbon |title=Gunung Masurai Jambi, Surganya Pendaki Sleeping Mountain |url=https://travelingyuk.com/gunung-masurai-jambi/176365 |archive-url=https://ghostarchive.org/archive/20220213/https://travelingyuk.com/gunung-masurai-jambi/176365 |archive-date=2022-02-13 |url-status=live|website=travelingyuk.com |access-date=12 February 2022 |language=id |date=9 July 2019}}{{cbignore}}
See also
{{Portal|Indonesia}}