Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ann M. Bauer"'
Destabilization of Long‐Lived Hadean Protocrust and the Onset of Pervasive Hydrous Melting at 3.8 Ga
Autor:
Nadja Drabon, Benjamin L. Byerly, Gary R. Byerly, Joseph L. Wooden, Michael Wiedenbeck, John W. Valley, Kouki Kitajima, Ann M. Bauer, Donald R. Lowe
Publikováno v:
AGU Advances, Vol 3, Iss 2, Pp n/a-n/a (2022)
Abstract The nature of Earth's earliest crust and crustal processes remain unresolved questions in Precambrian geology. While some hypotheses suggest that plate tectonics began in the Hadean, others suggest that the Hadean was characterized by long
Externí odkaz:
https://doaj.org/article/0903fc28340c40c0b5a740dae8a5dabc
Autor:
Jeffrey S Munroe, Elsa J Soderstrom, Camryn L Kluetmeier, Michael J Tappa, Derek V Mallia, Ann M Bauer
Publikováno v:
Environmental Research Letters, Vol 18, Iss 10, p 104034 (2023)
Mountain environments are profoundly impacted by the deposition of mineral dust, yet the degree to which this material is far-traveled or intra-regional is typically unclear. This distinction is fundamental to model future changes in mountain geoecos
Externí odkaz:
https://doaj.org/article/5d3eaefd7a19416487df4377973738a0
Autor:
Omar Khalil Droubi, Ann M. Bauer, Chloë Bonamici, William O. Nachlas, Michael J. Tappa, Joshua M. Garber, Jesse R. Reimink
Publikováno v:
Geostandards and Geoanalytical Research. 47:337-369
Publikováno v:
Geochimica et Cosmochimica Acta. 283:85-102
The Acasta Gneiss Complex (AGC) of the Northwest Territories, Canada, contains some of the oldest evolved terrestrial crust and has a sustained record of more than a billion years of magmatism (>4.0–2.9 Ga). These rocks provide an opportunity to in
Autor:
Nadja Drabon, Ann M. Bauer, Gary R. Byerly, John W. Valley, Joseph L. Wooden, Kouki Kitajima, Donald R. Lowe, Michael Wiedenbeck, Benjamin L. Byerly
Publikováno v:
Goldschmidt2021 abstracts.
Autor:
D.G. Pearson, Thomas Chacko, Bradford J. Foley, J. R. Reimink, Ann M. Bauer, Steven B. Shirey
Publikováno v:
Goldschmidt2021 abstracts.
Autor:
Ann M. Bauer, Thomas Chacko, Richard W. Carlson, Steven B. Shirey, Richard A. Stern, D. Graham Pearson, Larry M. Heaman, J. R. Reimink, Jingao Liu
Publikováno v:
Earth and Planetary Science Letters. 494:12-22
The timing and mechanisms of continental crust formation represent major outstanding questions in the Earth sciences. Extinct-nuclide radioactive systems offer the potential to evaluate the temporal relations of a variety of differentiation processes
Publikováno v:
Lithos. :106196
Plagiogranites are a volumetrically minor component of oceanic crust and ophiolites, but offer an opportunity to probe the processes and mechanisms by which felsic crusts were produced from the mafic oceanic crusts. The Qinling-Tongbai orogenic belt
Publikováno v:
Earth and Planetary Science Letters. 458:37-48
The Acasta Gneiss Complex of the Northwest Territories, Canada, contains some of the earliest terrestrial continental crust and thus provides a critical sample set for characterization of crust-forming processes on the early Earth. Here we report the
Autor:
Joshua F. Einsle, Benjamin P. Weiss, Richard J. Harrison, David Glenn, Jefferson F.D.F. Araujo, Ann M. Bauer, Pauli Kehayias, Ronald L. Walsworth, Jeff Gelb, Roger R. Fu, Eduardo A. Lima, Guleed A.H. Ali
Publikováno v:
Earth and Planetary Science Letters. 458:1-13
Zircon crystals offer a unique combination of suitability for high-precision radiometric dating and high resistance to alteration. Paleomagnetic experiments on ancient zircons may potentially constrain the earliest geodynamo, which holds broad implic