IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
artículos
Título:
Paleontology, sedimentology and paleoenvironment of a new fossiliferous locality of the Jurassic Cañadón Asfalto Formation, Chubut Province, Argentina
Autor/es:
GALLEGO, OSCAR F.; CABALERI, NORA G.; ARMELLA, CLAUDIA; VOLKHEIMER, WOLFGANG; BALLENT, SARA; MARTINEZ, SERGIO; MONFERRÁN, M.; SILVA NIETO, DIEGO GONZALO; PAEZ, MANUEL A.
Revista:
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
Editorial:
Elsevier
Referencias:
Año: 2011 vol. 31 p. 54 - 54
ISSN:
0895-9811
Resumen:
New lithostratigraphic, paleontologic, biostratigraphic, geochronologic and environmental data of the Late Jurassic Puesto Almada Member of the Cañadón Asfalto Formation, Cerro Cóndor Depocenter, Chubut Province, Extra-andean Patagonia, Argentina are presented. The studied section is located 41 km north of Cerro Cóndor Village, along the Provincial Road Nr. 12, within the Estancia ?La Sin Rumbo?. The outcropping section is composed by yellowish tuffs, tuffites and subordinated argillites bearing conchostracans, ostracods, bivalve and gastropod mollusks, and the first records of insect (trichopteran) cases assigned to the ichnogenera: Conchindusia Vialov and Sukatsheva, Ostracindusia Vialov and Terrindusia Vialov. The presence of systems of mud cracks in several levels of the section indicates arid environmental conditions New lithostratigraphic, paleontologic, biostratigraphic, geochronologic and environmental data of the Late Jurassic Puesto Almada Member of the Cañadón Asfalto Formation, Cerro Cóndor Depocenter, Chubut Province, Extra-andean Patagonia, Argentina are presented. The studied section is located 41 km north of Cerro Cóndor Village, along the Provincial Road Nr. 12, within the Estancia ?La Sin Rumbo?. The outcropping section is composed by yellowish tuffs, tuffites and subordinated argillites bearing conchostracans, ostracods, bivalve and gastropod mollusks, and the first records of insect (trichopteran) cases assigned to the ichnogenera: Conchindusia Vialov and Sukatsheva, Ostracindusia Vialov and Terrindusia Vialov. The presence of systems of mud cracks in several levels of the section indicates arid environmental conditions during the deposition of the Puesto Almada Member.