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Gunung Todoko-Ranu

Todoko-Ranu

Kaldera · Indonesia · 979 m

The twin caldera complex of Todoko-Ranu appears in this NASA Landsat image of western Halmahera Island (with north to the top). Todoko caldera (the circular feature just left of center) lies SW of nested calderas at Ranu, the northern of which contains a lake, faintly visible above the clouds above and to the right of the center of the image. No historical eruptions have been reported from the complex, but fumaroles and hot springs are present, and youthful-looking lava flows have reached the sea.
The twin caldera complex of Todoko-Ranu appears in this NASA Landsat image of western Halmahera Island (with north to the top). Todoko caldera (the circular feature just left of center) lies SW of nested calderas at Ranu, the northern of which contains a lake, faintly visible above the clouds above and to the right of the center of the image. No historical eruptions have been reported from the complex, but fumaroles and hot springs are present, and youthful-looking lava flows have reached the sea. · Foto: NASA Landsat 7 image (worldwind.arc.nasa.gov) · Wikimedia Commons
Tipe
Kaldera
Negara
Indonesia
Wilayah
Western Pacific Volcanic Regions / Halmahera Volcanic Arc
Ketinggian
979 m
Koordinat
1.239, 127.456
Letusan terakhir
Tidak diketahui
Kondisi tektonik
Subduction zone / Oceanic crust (< 15 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

Todoko-Ranu is a large volcanic complex south of Gamkonora in North Maluku, Halmahera, that includes two calderas. The 2 x 2.8 km nested Ranu calderas on the north contains a caldera lake in the smaller one. The lava-filled Todoko caldera is south of the Ranu calderas. The post-caldera Sahu cone, on the S flank of Todoko, is the high point of the complex. Gunung Onu, NW of Ranu caldera, lies at the northern end of the complex. No eruptions have been reported, but it was mapped as Holocene (Supriatna, 1980). Fumaroles are present at Ranu caldera and hot springs are found on Mt. Sahu. Youthful-looking lava flows reach the sea from several locations within the complex.

Ringkasan Wikipedia

Gunung Todoko-Ranu adalah kompleks kaldera kembar di Pulau Halmahera, Indonesia. Kaldera Todoko berisi lava dan memiliki lebar 2 km yang terletak di selatan kaldera Ranu yang memiliki Kerucut vulkanik sahu dengan lebar 2,8 km. Di utara kaldera Ranu terdapat danau kaldera. Tidak ada catatan sejarah khusus dari kompleks kaldera kembar.

Wikipedia · CC BY-SA · Baca artikel lengkap →

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