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Tarso Toh

Toh, Tarso

화산대지 · Chad · 2000m

Small scoria cones and lava flows of the Tarso Tôh volcanic field can be seen in the large darker-brown area at the center of this NASA Landsat image. This Pleistocene-to-Holocene volcanic field in the Tibesti Range of Chad covers a 30 x 80 km area and contains 150 scoria cones and two maars. Basaltic lava flows at Tarso Tôh were erupted over a basement of Precambrian schists and Paleozoic sandstones. The black lava flows at the very bottom-center are distal lava flows from Tarso Toussidé volcano.
Small scoria cones and lava flows of the Tarso Tôh volcanic field can be seen in the large darker-brown area at the center of this NASA Landsat image. This Pleistocene-to-Holocene volcanic field in the Tibesti Range of Chad covers a 30 x 80 km area and contains 150 scoria cones and two maars. Basaltic lava flows at Tarso Tôh were erupted over a basement of Precambrian schists and Paleozoic sandstones. The black lava flows at the very bottom-center are distal lava flows from Tarso Toussidé volcano. · 사진: NASA Landsat 7 image (worldwind.arc.nasa.gov) · Wikimedia Commons
화산 유형
화산대지
국가
Chad
지역
북아프리카 / East Central Sahara Volcanic Province
해발
2000m
좌표
21.330, 16.330
마지막 분화
미확인
판구조 환경
Intraplate / Continental crust (> 25 km)
화산 지형
Cluster
주요 암석
Basalt / Picro-Basalt
지질학적 요약

The Tarso Tôh Pleistocene-to-Holocene volcanic field in the NW part of the arid Tibesti Range of Chad contains 150 scoria cones and two maars. Basaltic lava flows fill valleys and plains over an area of 80 km in an E-W direction and 20-30 km in a N-S direction in the area north of the more well-known Tarso Toussidé Volcanic Complex. The flows were erupted over a basement of Precambrian schists on the east and Paleozoic sandstones on the west. Sediments within the Begour maar were radiocarbon dated at 8300 +/- 300 years (Hagedorn and Jakel, 1969).

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