Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Lauren M. Chetel"'
Autor:
Lauren M. Chetel, Brad S. Singer, Brian L. Beard, Alan R. Carroll, Clark M. Johnson, Susanne U. Janecke
Publikováno v:
Geological Society of America Bulletin. 123:71-88
Eocene Lake Gosiute in southwestern Wyo- ming was progressively fi lled in by volcani- clastic sediment between 49.6 and 47.0 Ma. The source of this material has long been thought to have been the Absaroka volcanic province, immediately north of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d371df2436e6130c8348069a453a2f0
https://doi.org/10.1130/b30213.1
https://doi.org/10.1130/b30213.1
Autor:
Lauren M. Chetel, Alan R. Carroll
Publikováno v:
Journal of Sedimentary Research. 80:492-514
Deposition of lacustrine sediments in the greater Green River Basin was progressively terminated in the middle Eocene as volcaniclastic detritus prograded across the basin; the lacustrine sediment of the Laney Member was replaced by deposition of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::709ff36cd3bbfe014970173af403300b
https://doi.org/10.2110/jsr.2010.050
https://doi.org/10.2110/jsr.2010.050
Publikováno v:
Geological Society of America Bulletin. 122:236-252
Oxygen isotope values from lacustrine carbonate in the Laney Member of the Green River Formation (Wyoming) exhibit a sudden, basinwide, ~6‰ upsection decrease in δ 18 O at ca. 49 Ma. 40 Ar/ 39 Ar geochronology constrains the duration of the isotop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91e7a1574b4414882693240084909f91
https://doi.org/10.1130/b26522.1
https://doi.org/10.1130/b26522.1
40Ar/39Ar geochronology and provenance of detrital K-feldspars, Ordovician, Upper Mississippi Valley
Publikováno v:
Sedimentary Geology. 182:163-181
The Upper Ordovician strata of the Upper Mississippi Valley contain numerous thin, shale layers. Eighteen of these shale layers were previously thought to be altered volcanic ash beds, known as K-bentonites. Radioisotopic geochronology of six of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a329a63b08045efcd56f35f3dd463c3
https://doi.org/10.1016/j.sedgeo.2005.07.010
https://doi.org/10.1016/j.sedgeo.2005.07.010
Publikováno v:
Geology. 34:197
Erosion of Laramide-style uplifts in the western United States exerted an important first-order influence on Paleogene sedimentation by controlling sediment supply rates to adjacent closed basins. During the latest Cretaceous through Paleocene, these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::622bea5d366c09b49f4ed302bb0bea39
https://doi.org/10.1130/g22148.1
https://doi.org/10.1130/g22148.1