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Articles 91 - 120 of 29921
Full-Text Articles in Physical Sciences and Mathematics
Mgrre_Thinsections_Mgrre-101_16, Mgrre
Mgrre_Thinsections_Mgrre-101_19, Mgrre
Mgrre_Thinsections_Mgrre-101_17, Mgrre
Mgrre_Thinsections_Mgrre-101_21, Mgrre
Mgrre_Thinsections_Mgrre-101_25, Mgrre
Mgrre_Thinsections_Mgrre-101_22, Mgrre
Mgrre_Thinsections_Mgrre-102_2, Mgrre
Mgrre_Thinsections_Mgrre-101_24, Mgrre
Mgrre_Thinsections_Mgrre-102_3, Mgrre
Mgrre_Thinsections_Mgrre-102_6, Mgrre
Mgrre_Thinsections_Mgrre-102_9, Mgrre
Mgrre_Thinsections_Mgrre-102_8, Mgrre
Mgrre_Thinsections_Mgrre-102_7, Mgrre
Mgrre_Thinsections_Mgrre-102_14, Mgrre
Mgrre_Thinsections_Mgrre-102_13, Mgrre
Mgrre_Thinsections_Mgrre-102_11, Mgrre
Mgrre_Thinsections_Mgrre-102_15, Mgrre
A Fiftieth Year Retrospective On The 1976 Mw 7.5 Motagua Earthquake In Guatemala, Grant Clark, Trenton Mcenaney, Jeremy Maurer, Andreas Eckert, Stephen S. Gao, Omar G. Flores, Robin Yani, Tina Niemi, Christoph Grützner, Francisco Gomez, Jonathan Obrist-Farner
A Fiftieth Year Retrospective On The 1976 Mw 7.5 Motagua Earthquake In Guatemala, Grant Clark, Trenton Mcenaney, Jeremy Maurer, Andreas Eckert, Stephen S. Gao, Omar G. Flores, Robin Yani, Tina Niemi, Christoph Grützner, Francisco Gomez, Jonathan Obrist-Farner
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
On 4 February 1976, an Mw > 7:5 earthquake ruptured ∼240 km of the Motagua fault in Guatemala, causing ∼23,000 fatalities. This event provided evidence for the fault's role as a major transform boundary between the North American and Caribbean plates. Field observations, seismological analyses, and postseismic studies helped constrain fundamental aspects of the 1976 earthquake mechanics and the spatial complexity of the rupture. This event opened a window for studies documenting past deformation along this plate boundary across multiple spatial and temporal scales. Five decades of research have established this earthquake as an important event for understanding strike-slip ruptures along …
Mgrre_Thinsections_Mgrre-101_12, Mgrre
Mgrre_Thinsections_Mgrre-101_14, Mgrre
Mgrre_Thinsections_Mgrre-101_8, Mgrre
Mgrre_Thinsections_Mgrre-101_6, Mgrre
Mgrre_Thinsections_Mgrre-101_16, Mgrre
Mgrre_Thinsections_Mgrre-101_18, Mgrre
Mgrre_Thinsections_Mgrre-102_5, Mgrre
Mgrre_Thinsections_Mgrre-102_12, Mgrre
Mgrre_Thinsections_Mgrre-101_1, Mgrre
Mgrre_Thinsections_Mgrre-101_11, Mgrre
Hillslope Aspect And Other Potential Controlling Factors On The Spacing Of Periglacial Stone Stripes In Se Oregon, Blue Hansen
Hillslope Aspect And Other Potential Controlling Factors On The Spacing Of Periglacial Stone Stripes In Se Oregon, Blue Hansen
University Honors Theses
Stone stripes are a type of patterned landscape that can be polygenetic in origin, but in the High Lava Plains province are interpreted to be relict periglacial features based on similarities to active stone stripe formation in current periglacial settings. Periglacial stone stripes are hypothesized to form via frost process, including ice-driven cracking and soil heave which is dependent on temperature, long-term differences in temperature may contribute to differences in stone stripe patterns or density. Stone stripes in Oregon and Idaho have previously been studied using field techniques, but there is room for reexamination of temperature controls on hillslope density …
Shallow-Marine Crinoid Genera May Have Been More Resilient Across Permian Extinction Events In Terms Of Richness Than Deep-Marine Crinoid Genera, Amelia C. Kolstad
Shallow-Marine Crinoid Genera May Have Been More Resilient Across Permian Extinction Events In Terms Of Richness Than Deep-Marine Crinoid Genera, Amelia C. Kolstad
University Honors Theses
Throughout the Phanerozoic, one of the most successful phyla of marine invertebrates has been Echinodermata. Echinodermata was particularly successful throughout the Paleozoic, with class Crinoidea making up a majority of occurrences. The proportion of echinoderm occurrences that are crinoids declined massively at the end of the Permian and continued to decrease into modern day, never fully recovering. One of the factors thought to have been so important for crinoid success in the Paleozoic and their decreasing success throughout geologic time has been their propensity for success in shallow-marine environments, though crinoids also exist within deep-marine environments. This study seeks to …