2,563 research outputs found
Throw-rate variations within linkage zones during the growth of normal faults: case studies from the Western Volcanic Zone, Iceland.
No full textThis work investigates how throw-rates vary within fault bends and sites of fault linkage during the process of normal fault growth. In the Western Volcanic Zone, Iceland, through detailed field mapping and field measurements of fault throws, normal faults are mapped and along-strike throw profiles are constructed in order to understand how the throw-rates relate with the local fault geometry along faults at different stages of linkage. The results show that throw-rates increase within linkage zones and propagating fault bends independently from the stage of maturity of the fault bend. This implies that 1) the relationship between the local fault geometry and the along-strike distribution of throw-rate is driven by the deeper part of the fault, where established fault bends start propagating to the surface; 2) faults grow first by linkage and coalescence of separate faults, and then by accumulation of slip on the resultant fault, in agreement with models of fault growth by linkage and coalescence; 3) incipient fault bends can produce uncertainty associated with palaeoseismological results, if fault bends remain unrecognised. Moreover, this work demonstrates that existing models showing increased co-seismic and throw-rates within fault bends and sites of fault linkage found in continental extensional settings are valid in a geodynamic context of a mid-oceanic rifts
Gerald Gorman
No full textPhorograph - Gerald Gorman in traditional Scottish clothing, (Edinburgh, Scotland). A note with the picture reads: "Hoot Mon", The Canadian Kid. Sincerely Yours, Gerald Gorma
Gerald Nelson discusses article "Do roads cause deforestation?"
No full textIFPRI Senior Researcher, Gerald Nelson, discusses the article, "Do roads cause deforestation." On July 25, 2011, Nelson and co-author, Daniel Hellerstein, were honored by the AAEA with the Publication of Enduring Quality Award for this innovative 1997 publication on techniques for turning satellite imagery into economic data
Portrait of President Gerald Ford.
No full textHandwritten Inscription: \u27To Felton M. Johnston - best always, Gerald Ford\u27https://egrove.olemiss.edu/fmjohnston/1097/thumbnail.jp
Occurrence of partial and total coseismic ruptures of segmented normal fault systems: insights from the Central Apennines, Italy
No full textNormal faulting earthquakes rarely rupture the entire extent of active normal faults, and can also jump between neighbouring faults. This confounds attempts to use segmentation models to define the likelihood of future rupture scenarios. We attempt to study this problem comparing the offsets produced in single earthquakes with those produced by multiple earthquakes over longer timescales, together with detailed studies of the structural geology. We study the active normal fault system causative of the Mw 6.3 2009 L’Aquila earthquake in central Italy, comparing the spatial distribution of coseismic offsets, cumulative offsets that have developed since 15 ±3 ka, and the total offsets that have accumulated since the faults initiated at 2-3 Ma. Our findings suggest that: 1) faults within a segmented fault system behave as a single interacting fault segment over time periods including multiple earthquake cycles (e.g. 2-3 Ma or 15±3ka), with single earthquakes causing either partial or total ruptures of the entire system; 2) an along-strike bend causes throw and throw-rates enhancements within the bend throughout the seismic history of the fault system. We discuss the synchronised and geometrically controlled activity rates on these faults in terms of the propensity for floating earthquakes, multi-fault earthquakes, and seismic hazard
Gerald Costanzo
No full textGerald Costanzo visited The College at Brockport in June 1984. He is a poet and publisher, and has been a faculty member at Carnegie Mellon University since 1970.Archived web contentSUNY BrockportWriters Forum Author Photo
Reverend Gerald Derstine
No full textEvangelist Reverend Gerald Derstine outside his church, Christian Retreat, on Upper Manatee River Road. He is the author of "Following the Fire" and "Fire over Israel"
Lu People
No full textArticle describing the Lu people living along the Mekong River.Section from the Ethnic groups of mainland Southeast Asia /Frank M LeBar; Gerald Cannon
Hickey; John K Musgrave. New Haven : Human Relations Area Files
Press, 1964, 206-213
Miao-Yao
No full textExamination of the Maio-Yao language familyEthnic groups of mainland Southeast Asia, Frank M. LeBar, Gerald C. Hickey and John K. Musgrave.
New Haven, Human Relations Area Files Press, 1964, 63-81
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