Výsledky vyhledávání - "David L. Barbeau"

Akademický článek

Global climate forcing on late Miocene establishment of the Pampean aeolian system in South America

Autor: Blake Stubbins, Andrew L. Leier, David L. Barbeau, Alex Pullen, Jordan T. Abell, Junsheng Nie, Marcelo A. Zárate, Mary Kate Fidler

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)

Abstract Wind-blown dust from southern South America links the terrestrial, marine, atmospheric, and biological components of Earth’s climate system. The Pampas of central Argentina (~33°–39° S) contain a Miocene to Holocene aeolian record that

Externí odkaz: https://doaj.org/article/86b60b7cb0fe4f95901c165a88f581b7

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Akademický článek

A westerly wind dominated Puna Plateau during deposition of upper Pleistocene loessic sediments in the subtropical Andes, South America

Autor: Alex Pullen, David L. Barbeau, Andrew L. Leier, Jordan T. Abell, Madison Ward, Austin Bruner, Mary Kate Fidler

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)

Detrital zircon ages in Pleistocene sediments and wind erosion patterns indicate the Puna Plateau was dominated by westerly winds during intervals of high dust accumulation in the eastern subtropical Andes.

Externí odkaz: https://doaj.org/article/d0021e0a3ad24e82a5b6f7b4124d820d

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Detrital zircon provenance and transport pathways of Pleistocene-Holocene eolian sediment in the Pampean Plains, Argentina

Autor: Austin Bruner, Andrew L. Leier, David L. Barbeau, Alex Pullen, Mary Kate Fidler, Blake Stubbins

Publikováno v: GSA Bulletin. 135:435-448

The Pampas of Argentina contain a broad distribution of Pleistocene to Holocene loessic sediments and eolian dune deposits. Models describing the sediment provenance of this eolian system have, at times, conflicted. We address the provenance of these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b0240b1dcf026202829f6bfa5d15f1e
https://doi.org/10.1130/b36267.1

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Akademický článek

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Late Cretaceous sediment provenance in the eastern Gulf Coastal Plain (U.S.A.) based on detrital-zircon U-Pb ages and Th/U values

Autor: Barry Shaulis, Matthew P. McKay, Adelie Ionescu, Donald A. Beebe, William T. Jackson, Carolyn Mullins, David L. Barbeau

Publikováno v: Journal of Sedimentary Research. 91:1025-1039

Detrital-zircon U-Pb geochronology documents a regional- to continental-scale drainage reorganization along the eastern Gulf Coastal Plain (USA) from the Late Cretaceous (Cenomanian) to the Paleocene–Eocene. We present detrital-zircon U-Pb ages and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff62cdb1bef2b3ee19b3fb0b1c37ec41
https://doi.org/10.2110/jsr.2020.177

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Ancestral trans–North American Bell River system recorded in late Oligocene to early Miocene sediments in the Labrador Sea and Canadian Great Plains

Autor: Howie D. Scher, Amy L. Weislogel, Austin Bruner, Dale A. Leckie, Julia I. Corradino, David L. Barbeau, Alex Pullen, Lisel D. Currie, Andrew Leier

Publikováno v: GSA Bulletin. 134:130-144

The Bell River hypothesis proposes that an ancestral, transcontinental river occupied much of northern North America during the Cenozoic Era, transporting water and sediment from the North American Cordillera to the Saglek Basin on the eastern margin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd6f0f006b934ceede0c9db325f3b77e
https://doi.org/10.1130/b35903.1

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Evolution of ca. 2.5 Ga Dongargarh volcano-sedimentary Supergroup, Bastar craton, Central India: Constraints from zircon U-Pb geochronology, bulk-rock geochemistry and Hf-Nd isotope systematics

Autor: Michael Bizimis, V.V. Sesha Sai, David L. Barbeau, A. Keshav Krishna, Tarun C. Khanna

Publikováno v: Earth-Science Reviews. 190:273-309

The amalgamation of five Paleo- to Mesoarchean protocontinent blocks [Singhbhum, Bastar, Dharwar, Aravalli and Bundelkhand] resulted in the present-day tectonic configuration of India. The Dongargarh Supergroup is a major volcano-sedimentary sequence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b851c406ec1dccebe6af195a62b479c1
https://doi.org/10.1016/j.earscirev.2018.11.014

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A CRUCIAL GEOLOGIC TEST OF LATE JURASSIC EXOTIC COLLISION VERSUS ENDEMIC RE-ACCRETION IN THE KLAMATH MOUNTAINS PROVINCE, WESTERN UNITED STATES, WITH IMPLICATIONS FOR THE ASSEMBLY OF WESTERN NORTH AMERICA

Autor: John A. Russell, Jonathan A. Rivas, Alan D. Chapman, David L. Barbeau, Todd A. LaMaskin, Joshua J. Schwartz

Publikováno v: Geological Society of America Abstracts with Programs.

Differing interpretations of geophysical and geologic data have led to debate regarding continent-scale plate configuration, subduction polarity, and timing of collisional events on the western North American plate margin in pre–mid-Cretaceous time

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::deae2b440af90bec1cb059cb3ed12340
https://doi.org/10.1130/abs/2021am-370508

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