Search Results - "Ankney, Meagan E."

Isotope systematics of subfossil, historical, and modern Nautilus macromphalus from New Caledonia by Linzmeier, Benjamin J, Jacobson, Andrew D, Sageman, Bradley B, Hurtgen, Matthew T, Ankney, Meagan E, Masterson, Andrew L, Landman, Neil H

“…Cephalopod carbonate geochemistry underpins studies ranging from Phanerozoic, global-scale change to outcrop-scale paleoecological reconstructions…”
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Calcium isotope ratios of malformed foraminifera reveal biocalcification stress preceded Oceanic Anoxic Event 2 by Kitch, Gabriella D., Jacobson, Andrew D., Sageman, Bradley B., Coccioni, Rodolfo, Chung-Swanson, Tia, Ankney, Meagan E., Hurtgen, Matthew T.

“…Abstract Ocean acidification causes biocalcification stress. The calcium isotope composition of carbonate producers can archive such stress because calcium…”
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Isotope systematics of subfossil, historical, and modern Nautilus macromphalus from New Caledonia by Benjamin J. Linzmeier, Andrew D. Jacobson, Bradley B. Sageman, Matthew T. Hurtgen, Meagan E. Ankney, Andrew L. Masterson, Neil H. Landman

“…Cephalopod carbonate geochemistry underpins studies ranging from Phanerozoic, global-scale change to outcrop-scale paleoecological reconstructions…”
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Os and U–Th isotope signatures of arc magmatism near Mount Mazama, Crater Lake, Oregon by Ankney, Meagan E., Shirey, Steven B., Hart, Garret L., Bacon, Charles R., Johnson, Clark M.

“…Interaction of mantle melts with the continental crust can have significant effects on the composition of the resulting melts as well as on the crust itself,…”
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Distinguishing lower and upper crustal processes in magmas erupted during the buildup to the 7.7 ka climactic eruption of Mount Mazama, Crater Lake, Oregon, using [sup.238]U-[sup.230]Th disequilibria by Ankney, Meagan E, Johnson, Clark M, Bacon, Charles R, Beard, Brian L, Jicha, Brian R

“…Uranium-series isotope ratios determined for 35 volcanic rocks and 4 glass separates erupted from ~36 to 4.8 ka at Mt. Mazama, Crater Lake, Oregon, identify…”
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Oxygen and U-Th isotopes and the timescales of hydrothermal exchange and melting in granitoid wall rocks at Mount Mazama, Crater Lake, Oregon by Ankney, Meagan E., Bacon, Charles R., Valley, John W., Beard, Brian L., Johnson, Clark M.

“…We report new whole rock U-Th and in-situ oxygen isotope compositions for partially melted (0–50vol% melt), low-δ18O Pleistocene granitoid blocks ejected…”
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Distinguishing lower and upper crustal processes in magmas erupted during the buildup to the 7.7 ka climactic eruption of Mount Mazama, Crater Lake, Oregon, using ^sup 238^U-^sup 230^Th disequilibria by Ankney, Meagan E, Johnson, Clark M, Bacon, Charles R, Beard, Brian L, Jicha, Brian R

“…Uranium-series isotope ratios determined for 35 volcanic rocks and 4 glass separates erupted from ~36 to 4.8 ka at Mt. Mazama, Crater Lake, Oregon, identify…”
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Distinguishing lower and upper crustal processes in magmas erupted during the buildup to the 7.7 ka climactic eruption of Mount Mazama, Crater Lake, Oregon, using 238U–230Th disequilibria by Ankney, Meagan E., Johnson, Clark M., Bacon, Charles R., Beard, Brian L., Jicha, Brian R.

“…Uranium-series isotope ratios determined for 35 volcanic rocks and 4 glass separates erupted from ~36 to 4.8 ka at Mt. Mazama, Crater Lake, Oregon, identify…”
Get full text