Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Adam J.R. Kent"'
Autor:
Adam J.R. Kent, Josef Dufek
Publikováno v:
Elements. 18:221-225
The well-studied Cascadia subduction zone has enriched our general understanding of global subduction zones. This Elements issue explores the interconnected set of processes that link geodynamics, tectonics, and magmatism at depth and the surface exp
Autor:
Adam J.R. Kent
Publikováno v:
Elements. 18:232-238
The Cascade arc has produced a remarkable diversity of volcanic rocks over the Quaternary period. The major stratovolcanoes that define the arc front are dominated by eruptions of andesitic and dacitic intermediate magmas, produced largely by fractio
Publikováno v:
California Fish and Wildlife Journal, Vol 107, Iss 2, Pp 77-88 (2021)
To inform management and conservation of the species, we investigated the distribution of anadromy and residency of steelhead/rainbow trout (Oncorhynchus mykiss) in the Eel River of northwestern California. We determined maternal anadromy versus resi
Autor:
Scott Halley, John H. Dilles, Richard M. Tosdal, Gregory M. Dipple, Tatiana Alva-Jimenez, Adam J.R. Kent
Publikováno v:
Economic Geology. 115:903-926
Hydrothermal white mica in the Highland Valley district, British Columbia, is present in high-temperature alteration assemblages in early halo veins and in intermediate-temperature sericitic alteration assemblages in D-type veins. Pale-gray white mic
Autor:
Bradley W. Pitcher, Adam J.R. Kent
Publikováno v:
Geochimica et Cosmochimica Acta. 265:443-467
Primitive and mafic lavas erupted in the Cascades arc of western North America demonstrate significant patterns of along-arc heterogeneity. Such compositional diversity may be the result of differences in mantle melting processes, subduction geometry
Publikováno v:
Pedersen, J M, Ulrich, T, Whitehouse, M J, Kent, A J R & Tegner, C 2021, ' The volatile and trace element composition of apatite in the Skaergaard intrusion, East Greenland ', Contributions to Mineralogy and Petrology, vol. 176, no. 12, 102 . https://doi.org/10.1007/s00410-021-01861-x
We present a systematic examination of the volatile (Cl, F, Br, S) and trace element (Na, Mg, V, Mn, Fe, Sr, Y, Zr, Ba, REEs, Th, U) abundances in apatite from 29 samples from base to top of the Layered Series in the Skaergaard intrusion, East Greenl
Publikováno v:
Journal of Petrology. 62
The Okataina Volcanic Centre (OVC), located in the Taupo Volcanic Zone, New Zealand, is a dominantly rhyolitic magmatic system in an arc setting, where eruptions are thought to be driven by mafic recharge. Here, Sr–Pb isotopes, and compositional an
Autor:
Hisayoshi Yurimoto, Noriyuki Kawasaki, May Sas, Adam J.R. Kent, Phil Shane, Naoya Sakamoto, Georg F. Zellmer
Publikováno v:
Chemical geology. 513:153-166
We investigated the potential of multi-collector secondary ion mass spectrometry (MC-SIMS) as a tool for obtaining Sr isotopic compositions in plagioclase, a ubiquitous mineral in igneous rocks that serves as a recorder of crystallization history. MC
Autor:
James B. Gaherty, Bradley W. Pitcher, Geoffrey A. Abers, Adam J.R. Kent, Christy B. Till, H. A. Janiszewski
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
Nature Communications
Nature Communications
Decades of study on volcanic arcs have provided insight into the overarching processes that control magmatism, and how these processes manifest at individual volcanoes. However, the causes of ubiquitous and dramatic intra-arc variations in volcanic f
Publikováno v:
American Mineralogist. 103:1812-1826