Results 141 to 150 of about 317 (175)

Determination of Structural Lineaments of the Mafic-Ultramafic Belt of the Southern Argentine Precordillera

Journal of South American Earth Sciences, 2023
Fil: Richarte, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales.
Sánchez, María Victoria, Richarte, Daniel, Gimenez, Mario Ernesto, Boedo, Florencia Lucila, Vujovich, Graciela Irene   +4 more
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Epizoan-sponge Interactions in the Early Ordovician of the Argentine Precordillera

PALAIOS, 2000
Abstract Evidence for biotic interaction is not obtainable easily in the fossil record. Epizoans cemented to the skeletons of host organisms provide an opportunity to study possible host–epizoan interactions and the ecological structure of hard substratum communities.
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Surface uplift and erosion of the southernmost Argentine Precordillera

Geomorphology, 2012
article i nfo Article history: The timing of uplift of the Precordillera is important for understanding the linkages, if any, between slab dynam- ics, shortening and topography. The study region (between 32° and 33° S latitude)liesat the southern end of the flat slab, where the subducting Nazca plate is nearly horizontal.
Alina A. Walcek, Gregory D. Hoke
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Polyphase structural evolution of the southwestern Argentine Precordillera

Journal of South American Earth Sciences, 1995
Abstract The western and southwestern parts of the Argentine Precordillera display complex geometries which are not consistent with those of a typical high-level fold-and-thrust belt. They are the result of a polyphase structural evolution which spans the Early Paleozoic to Late Tertiary period.
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Ordovician accretion of the Argentine Precordillera terrane to Gondwana: a review

Journal of South American Earth Sciences, 2003
Abstract The Precordillera terrane of Argentina was rifted as a lithospheric block from the Ouachita embayment of southeastern Laurentia and accreted to western Gondwana. In various interpretations, the time of rifting of the Precordillera terrane from Laurentia ranges from Early Cambrian to Late Ordovician, and the time of accretion to Gondwana ...
William A. Thomas, Ricardo A. Astini
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Modern crustal seismicity in the northern Andean Precordillera, Argentina

Tectonophysics, 2019
Abstract The Precordillera in the Andean backarc region of Argentina has a long record of large and damaging earthquakes in the last century. Its northern part is not well known seismically neither its style of deformation. In this work we study modern crustal seismicity occurring in the same epicentral area of the historical 1894 earthquake.
Rivas, Carolina, Ortiz, Gustavo Federico, Alvarado, Patricia Monica, Podesta Di Santo, Marcos Gaston, Martin, Adriana   +4 more
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Cambrian phosphatic brachiopods from the Precordillera of western Argentina

GFF, 1999
Abstract The first Cambrian phosphatic brachiopods (Subphylum Linguliformea, Class Lingulata) are described from the San Juan Precor-dillera of western Argentina, including Neotreta tumida Sobolev, Quadrisonia minor Rowell & Henderson, Prototreta cf. mimica Bell, Curticia sp., Opisthotreta sp.
Lars E. Holmer, Leonid Popov, Oliver Lehnert   +2 more
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THE STRUCTURAL EVOLUTION OF THE NORTHERN SAN JUAN PRECORDILLERA, ARGENTINA: A REVIEW.

Journal of South American Earth Sciences
AbstractThis study is based on the construction of six structural cross-sections integrating recent outcrop mapping and newly acquired reflection seismic data from the Jáchal Valley, together with reprocessed legacy seismic lines, data from deep exploratory boreholes, and crustal seismicity beneath the Bermejo Valley.
René E. Manceda, Miguel A. Pérez, Luis A. Constantini   +2 more
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THE ILLINOIS AULACOGEN AND THE RIFTING OF THE ARGENTINE PRECORDILLERA

Geological Society of America Abstracts with Programs, 2023
David Malone, Jared Freiburg, Pat McLaughlin, Jarek Trela, Andrea Stevens Goddard, Joshua R. Malone, John Malone   +6 more
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Assessing the biodiversity of Ordovician ostracods from the Argentine Precordillera

Journal of Paleontology, 2007
Ostracod faunas from the Lower to Middle Ordovician rocks of the Argentine Precordillera Basin (Gualcamayo and Las Aguaditas Formations) are studied. A new family, Garcianidae, is erected. One new genus,Jeanvannieria, and six species are recognized, two of which are new (Jachalipisthia bicornataandJeanvannieria bulbosa).
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