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セント・キャサリン山

St. Catherine

成層火山 · Grenada · 840m

The southern end of the elongated Mount St. Catherine volcanic complex on the island of Grenada is seen here from the Southeast Mountain area.  The island is composed of five Pliocene-to-Pleistocene volcanic centers, the youngest and highest of which is 840-m-high Mount St. Catherine on the northern end of the island. The most recent activity originated from a group of young maars, tuff rings, and scoria cones extending across the length of the island.  These include Grand Etang crater, which lies near the crest of the skyline ridge.
The southern end of the elongated Mount St. Catherine volcanic complex on the island of Grenada is seen here from the Southeast Mountain area. The island is composed of five Pliocene-to-Pleistocene volcanic centers, the youngest and highest of which is 840-m-high Mount St. Catherine on the northern end of the island. The most recent activity originated from a group of young maars, tuff rings, and scoria cones extending across the length of the island. These include Grand Etang crater, which lies near the crest of the skyline ridge. · 写真: Photo by Richard Arculus, 1973 (Seismic Research Unit, University of West Indies). · Wikimedia Commons
タイプ
成層火山
Grenada
地域
Middle America-Caribbean Volcanic Regions / Lesser Antilles Volcanic Arc
標高
840m
座標
12.150, -61.670
最終噴火
不明
テクトニクス環境
Subduction zone / Oceanic crust (< 15 km)
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

The island of Grenada is composed of five Pliocene-to-Pleistocene volcanic centers, the youngest and highest of which is Mount St. Catherine on the northern end of the island. A complex of lava domes is located within a crater breached to the east at the summit. Pyroclastic-flow deposits extend NW from the extensively weathered volcano. The most recent activity on Grenada originated from a group of young maars, tuff rings, and scoria cones that extend SSW-NNE across the length of the 30-km-long island. Kick 'em Jenny, the historically active submarine volcano 8 km N of Grenada, is listed separately in this compilation along with adjacent submarine and subaerial cones that may represent a single volcanic complex. The most recent eruption, along a NE-SW-trending fault cutting across the island, produced a scoria cone near Radix village that could be less than 1,000 years old. Hot springs and fumaroles are present at several locations.

Wikipedia の要約

英語版の要約

Mount Saint Catherine is an extensively weathered stratovolcano mountain and tallest peak on the Caribbean island of Grenada. Its summit marks the dividing line between the parishes of St. Mark and St. Andrew and is one of the highlights of the Mount St. Catherine Forest Reserve.

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