volcanic graben

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• graben — GLOSSARY OF VOLCANIC TERMS An elongate crustal block that has moved downward relative to bounding fault systems (Foxworthy and Hill, 1982) …   Glossary of volcanic terms

• Ottawa-Bonnechere Graben — Map of the Ottawa Bonnechere Graben The Ottawa Bonnechere Graben (also known as the Ottawa Graben), with its branch the Timiskaming Graben, is an ancient rift valley in the Canadian Shield of Northeastern Ontario and Quebec, Canada. This rift… …   Wikipedia

• Upper Rhine Graben — in western Germany.Formation to the north of the Alps [Sengor, A.M.C. 1976. Collision of irregular continental margins: Implications for foreland deformation of Alpine type orogens. Geology, 4, 779 782.] . The result was substantial crustal… …   Wikipedia

• Oslo Graben — The Oslo Graben or Oslo Rift is a graben formed during a geologic rifting event in Permian time, the last phase of the Variscan orogeny.[1] The main graben forming period began in the late Carboniferous, which culminated with rift formation and… …   Wikipedia

• Daisetsuzan Volcanic Group — (大雪山系 Daisetsuzan kei) Nutapukaushipe or Nutaku Kamushupe volcanic group …   Wikipedia

• GEOGRAPHICAL SURVEY — Names The name Ereẓ Israel (the Land of Israel) designates the land which, according to the Bible was promised as an inheritance to the Israelite tribes. In the course of time it came to be regarded first by the Jews and then also by the… …   Encyclopedia of Judaism

• Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… …   Wikipedia

• Geology of the North Sea — Contents 1 Tectonic structure 2 Precambrian 3 Finnmarkian, Athollian, Caledonian Orogenies …   Wikipedia

• Geology of the Australian Capital Territory — Australia grew around three fused pieces of very ancient continental crust (cratons). The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian …   Wikipedia

• Massif Central (geology) — The Massif Central forms together with the Armorican Massif (Brittany and Normandy) one of the two big basement massifs in France. Its geological evolution started in the late Neoproterozoic and continues to this day. It has been shaped mainly by …   Wikipedia

• Outflow channels — Kasei Valles, seen in MOLA elevation data. Flow was from bottom left to right. North is up. Image is approx. 1600 km across. The channel system extends another 1200 km south of this image to Hebes Chasma. Outflow channels is the term used to… …   Wikipedia