Zobrazeno 1 - 9
of 9
pro vyhledávání: '"C. Grace Barcheck"'
Publikováno v:
Geology. 48:99-102
Icequakes radiating from an ice-stream base provide insights into otherwise difficult to observe sub-kilometer-scale basal heterogeneity. We detect basal icequakes beneath an ∼3-km-wide seismic sensor network installed on the Whillans Ice Plain (WI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbc212f025e1bd03b208844d43c4cbc4
https://doi.org/10.1130/g46626.1
https://doi.org/10.1130/g46626.1
Publikováno v:
Earth and Planetary Science Letters. 486:54-60
The Whillans Ice Plain (WIP) is unique among Antarctic ice streams because it moves by stick-slip. The conditions allowing stick-slip and its importance in controlling ice dynamics remain uncertain. Local basal seismicity previously observed during u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ff6466c2c14c12b42961c0917371caf
https://doi.org/10.1016/j.epsl.2017.12.046
https://doi.org/10.1016/j.epsl.2017.12.046
Publikováno v:
Journal of Geophysical Research: Earth Surface. 120:2237-2252
We identify a unique type of seismic source in the uppermost part of the East Antarctic Ice Sheet recorded by temporary broadband seismic arrays in East Antarctica. These sources, termed “firnquakes,” are characterized by dispersed surface wave t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c334ca66f5d5526c6876cd8ba42e280c
https://doi.org/10.1002/2015jf003658
https://doi.org/10.1002/2015jf003658
Rupture speed dependence on initial stress profiles: Insights from glacier and laboratory stick-slip
Autor:
Jay Fineberg, Slawek Tulaczyk, C. Grace Barcheck, Ilya Svetlizky, S. P. Carter, Jacob I. Walter, Emily E. Brodsky
Publikováno v:
Walter, JI; Svetlizky, I; Fineberg, J; Brodsky, EE; Tulaczyk, S; Grace Barcheck, C; et al.(2015). Rupture speed dependence on initial stress profiles: Insights from glacier and laboratory stick-slip. Earth and Planetary Science Letters, 411, 112-120. doi: 10.1016/j.epsl.2014.11.025. UC Santa Cruz: Retrieved from: http://www.escholarship.org/uc/item/4pt666nn
a r t i c l e i n f o a b s t r a c t Slow slip events are now well-established in fault and glacier systems, though the processes controlling slow rupture remain poorly understood. The Whillans Ice Plain provides a window into these processes throug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29a6af2a5e688a1e8f0c48498d485c71
WISSARD at Subglacial Lake Whillans, West Antarctica: scientific operations and initial observations
Autor:
Alberto Behar, Helen A. Fricker, Lucas H. Beem, Andrew T. Fisher, Reed P. Scherer, Slawek Tulaczyk, Kenneth D. Mankoff, Frank R. Rack, Matthew R. Siegfried, Brent C. Christner, Justin Burnett, Daniel E. Sampson, Susan Y. Schwartz, C. Grace Barcheck, John C. Priscu, Ross D. Powell, Jill A. Mikucki
Publikováno v:
Annals of Glaciology. 55:51-58
A clean hot-water drill was used to gain access to Subglacial Lake Whillans (SLW) in late January 2013 as part of the Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) project. Over 3 days, we deployed an array of scientific tools thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9267fdd83237ad671a04344d224dc93b
https://doi.org/10.3189/2014aog65a009
https://doi.org/10.3189/2014aog65a009
Autor:
Sridhar Anandakrishnan, Andrew A. Nyblade, C. Grace Barcheck, A. C. Lough, Douglas A. Wiens, Terry J. Wilson, Audrey D. Huerta, Richard C. Aster, Donald D. Blankenship, Duncan A. Young
Publikováno v:
Nature Geoscience. 6:1031-1035
Numerous volcanoes exist in Marie Byrd Land, a highland region of West Antarctica. High heat flow through the crust in this region may influence the stability of the West Antarctic Ice Sheet 1‐4 . Volcanic activity progressed from north to south in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a462ea293aba185fd8d0f1fffd6fc85
https://doi.org/10.1038/ngeo1992
https://doi.org/10.1038/ngeo1992
Publikováno v:
Earth and Planetary Science Letters. :153-160
Previous studies suggest that intermediate- and deep-focus earthquakes in subducting slabs may result from dehydration reactions. We investigate the importance of dehydration in facilitating intermediateand deep-focus earthquakes by comparing the sei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::818dc8117f1f93af46a1055c07cd8bc3
https://doi.org/10.1016/j.epsl.2012.06.055
https://doi.org/10.1016/j.epsl.2012.06.055
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