منابع مشابه
Great challenges in structural geology and tectonics
Successful scientific theories provide theoretical understanding for reliable deterministic or probabilistic forecasting of events. In the past decades the volume of data obtained within the fields of structural geology and tectonics has increased enormously, but the theoretical understanding of the processes that generate these data has not advanced at the same rate. For example, after decades...
متن کاملA New Synthesis on the Geology of Middle-earth: Genesis, Orogeny and Tectonics
In this paper, we discuss and critique existing hypotheses about the geology of Middle-earth in light of current geological theories of planetary formation, mountain building (orogeny) and plate tectonics. We dispute the prevailing tectonic explanation for the major geological features of Middle-earth and Arda on the basis of evidence as yet not fully considered about the formation of the plane...
متن کاملREGIONAL STRUCTURE, TECTONICS, AND BEDROCK GEOLOGY Tectonic Evolution of the Death Valley Region
S OF PAPERS IN PREPARATION 54. Charlton, R.L., Wernicke, B.P., and Abolins, M.J., 1997, A major Neoproterozoic incision event near the base of the Cordilleran miogeocline, southwestern Great Basin: Geological Society of America Abstracts with Programs, v. 29, no. 6, p. A-197. [S] 55. Petronis, M.S., Geissman, J.W., Holm, O.K., Schauble, E., and Wernicke, B.P., 1997, Paleomagnetic data bearing o...
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We propose that a new type of drill, alternately known as a Fast Mechanical-Access Drill, or Coiled Tubing Drill for Ice (CTDI), be developed for polar research. The proposed drill is similar in concept to the latest coiled tubing (CT) drills used for commercial oil and gas development. CT drills use a metal or advanced-composite tube to deliver fluid downhole to a hydraulic motor that drives a...
متن کاملGeology of the West Margin of the Shuswap Terrane near Sicamous Implications for Tertiary Extensional Tectonics
Recent field and geochronological investigations. in conjunction with LITHOPROBE seismic surveys, have led to the recognition of crust&scale, low to moderate-angle, Eocene extensional faults and shear ZOIIL‘S in the southern Omineca Belt. The present study focuses on documentation of the Eagle River fault, an extensional shear zone that delineates the western boundary of the Shuswap metamorphic...
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ژورنال
عنوان ژورنال: Nature
سال: 1977
ISSN: 0028-0836,1476-4687
DOI: 10.1038/265480a0