Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula

The 118 m thick volcanic sequence exposed at the Ramírez Nunatak, western Jason Peninsula (65°57′S, 60°33′W), Antarctic Peninsula, is composed of a lower section where ash fall tuffs and volcanic sandstones are exposed, and an upper section dominated by rhyolithic ignimbrites. The volcaniclastic sed...

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Detalles Bibliográficos
Publicado:	2006
Materias:	Antarctica Geochemistry Mid-Jurassic Paleobotany Volcanism continental breakup Gondwana ignimbrite Jurassic large igneous province paleobotany rhyolite sandstone tuff volcanic ash volcaniclastic deposit volcanism Antarctic Peninsula Patagonia South America West Antarctica Acer
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v61_n3_p383_delValle http://hdl.handle.net/20.500.12110/paper_00044822_v61_n3_p383_delValle
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00044822_v61_n3_p383_delValle
record_format	dspace
spelling	paper:paper_00044822_v61_n3_p383_delValle2023-06-08T14:26:00Z Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula Antarctica Geochemistry Mid-Jurassic Paleobotany Volcanism continental breakup Gondwana ignimbrite Jurassic large igneous province paleobotany rhyolite sandstone tuff volcanic ash volcaniclastic deposit volcanism Antarctic Peninsula Antarctica Patagonia South America West Antarctica Acer The 118 m thick volcanic sequence exposed at the Ramírez Nunatak, western Jason Peninsula (65°57′S, 60°33′W), Antarctic Peninsula, is composed of a lower section where ash fall tuffs and volcanic sandstones are exposed, and an upper section dominated by rhyolithic ignimbrites. The volcaniclastic sediments of the lower section show imprints of lives assigned to Hausmannia de-ferrariisi Feruglio, which indicates a Mid-Jurassic age. The rocks from Ramírez Nunatak are correlated with Maple Formation of the same age, which is typically exposed at the surroundings of Cape Disappointment, located about 60 km northward from Jason Peninsula. These rocks form part of a siliceous large igneous province developed in Patagonia and Antarctic Peninsula in relation to the Gondwana break-up. © 2006 Asociación Geológica Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v61_n3_p383_delValle http://hdl.handle.net/20.500.12110/paper_00044822_v61_n3_p383_delValle
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Antarctica Geochemistry Mid-Jurassic Paleobotany Volcanism continental breakup Gondwana ignimbrite Jurassic large igneous province paleobotany rhyolite sandstone tuff volcanic ash volcaniclastic deposit volcanism Antarctic Peninsula Antarctica Patagonia South America West Antarctica Acer
spellingShingle	Antarctica Geochemistry Mid-Jurassic Paleobotany Volcanism continental breakup Gondwana ignimbrite Jurassic large igneous province paleobotany rhyolite sandstone tuff volcanic ash volcaniclastic deposit volcanism Antarctic Peninsula Antarctica Patagonia South America West Antarctica Acer Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula
topic_facet	Antarctica Geochemistry Mid-Jurassic Paleobotany Volcanism continental breakup Gondwana ignimbrite Jurassic large igneous province paleobotany rhyolite sandstone tuff volcanic ash volcaniclastic deposit volcanism Antarctic Peninsula Antarctica Patagonia South America West Antarctica Acer
description	The 118 m thick volcanic sequence exposed at the Ramírez Nunatak, western Jason Peninsula (65°57′S, 60°33′W), Antarctic Peninsula, is composed of a lower section where ash fall tuffs and volcanic sandstones are exposed, and an upper section dominated by rhyolithic ignimbrites. The volcaniclastic sediments of the lower section show imprints of lives assigned to Hausmannia de-ferrariisi Feruglio, which indicates a Mid-Jurassic age. The rocks from Ramírez Nunatak are correlated with Maple Formation of the same age, which is typically exposed at the surroundings of Cape Disappointment, located about 60 km northward from Jason Peninsula. These rocks form part of a siliceous large igneous province developed in Patagonia and Antarctic Peninsula in relation to the Gondwana break-up. © 2006 Asociación Geológica Argentina.
title	Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula
title_short	Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula
title_full	Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula
title_fullStr	Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula
title_full_unstemmed	Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula
title_sort	geology of the ramírez nunatak, jason peninsula, antarctic peninsula
publishDate	2006
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v61_n3_p383_delValle http://hdl.handle.net/20.500.12110/paper_00044822_v61_n3_p383_delValle
_version_	1768542717806116864

Geology of the Ramírez Nunatak, Jason Peninsula, Antarctic Peninsula

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