Continued extensional evolution of the Whipple detachment fault caused tilting of the upper‐plate strata and the formation of numerous half and full grabens as well as roll‐over structures. Download Free PDF. To link to the entire object, paste this link in email, IM or document To embed the entire object, paste this HTML in website To link to this page, paste this link in email, IM or Photo by C.Roig. dipping Whipple detachment fault of southeastern California, and western Arizona, for example (Fig. Stress state and fluid-pressure level along the Whipple detachment fault, California. The mylonitic front is a gradational SW-dipping contact between Tertiary mylonitic gneisses and structurally higher, … The role of extensional tectonics in the Caledonides of South Norway. en The latter is underlain by blind reverse faults probably merging into a detachment fault … This paper. Compared to the main detachment, MDs … Brittle structures in the upper 200 m of the footwall of the Whipple detachment fault are used to characterize the state of stress under which the detachment slipped. cataclastic and ultracataclastic rocks (including pseudo- Whipple Mountains metamorphic core complex (Figure 1 tachylyte), and (4) chlorite-epidote alteration of the mylo- and Table S1 of the auxiliary material), with most attention nites. ↑Fossen H. (1992). de Abscherungen des Kernkomplextyps sind sehr häufig im südöstlichen Kalifornien anzutreffen, so z. 1992. ↑ Davis, G.A. PDF. The Whipple detachment fault in E. California is a classic example of a large-displacement (~40 km), low-angle normal fault formed during Miocene Basin and Range extension. My name is Claudia. The absence of a detachment … In the Whipple Mountains, just the exposed portion of the detachment fault is more than 30 … By contrast, LANF fault rocks exhumed from the mid-crustal brittle–plastic transition at temperatures of 250 to 420 °C, several LANFs (the Woodlark Basin detachment, Zuccalle Fault, and the Whipple Detachment) exhibit compelling field evidence for overpressure, such as fault-parallel tensile veins (Roller et al., 2001, Collettini et al., 2006, Selverstone et al., 2012) I’m a Ph.D student working with Dr. Chloë Bonamici in the fields of metamorphic petrology and stable isotope geochemistry at the University of Wisconsin-Madison. PDF. The rock record of seimic nucleation: a case study from the Whipple Mountains Detachment Fault, eastern California Daniel Ortega-Arroyo, Whitney M. Behr, & Emilie Gentry Submitted August 15, 2017, SCEC Contribution #7686, 2017 SCEC Annual Meeting Poster #114 Despite advances in our understanding of the physics of earthquakes, the mechanisms by which … PDF. Download PDF Package. Rapid upward transport of mid-crustal mylonitic gneisses in the footwall of a Miocene detachment fault, Whipple Mountains, southeastern California. the Whipple Mountain Detachment Fault. Binet y explique que la version de 1908 a fait l’objet d’éloges autant que de critiques, citant notamment les travaux des Américains Henry H. Goddard (1866-1957) et Guy Montrose Whipple (1876-1941) et que certains points devaient donc être améliorés. Journal of Structural Geology, 14:1033–1046. Tertiary sedimentation along the Lake Mead fault system, Virgin Mountains, Nevada-Arizona Definition of Detachment fault in the Definitions.net dictionary. These axes coincide with the major or long axes of fault corrugations (Figure 2c). The role of extensional tectonics in the Caledonides of South Norway. Il précise alors comment certaines épreuves ont été modifiées, d’autres ajoutées ou retirées. Find books Detachment Fault, CA. Oxygen isotope compositions of epidote and quartz from chloritic breccias that underlie the detachment fault in the metamorphic core complex of the Whipple Mountains yielded quartz-epidote fractionations that range from 4.1 to 6.4 per mil and increase systematically toward the fault. WikiMatrix. These fractionations give mean temperatures that decrease from ∼432°C at 50 meters below the fault … Rocks from the lower plate were brought to the surface during the later stages of detachment‐fault activity thereby producing sufficient topographic relief for large landslides to … en Detachment fault related shear zones can be found in southeastern California, e.g. Journal of Structural Geology, 14, 1033-1046. About me ¡Hola! Estimation du changement de règle (9000 hab) Estimation élaborée le 17 Janvier 2020, la règle a subi plusieurs modifications depuis mais donne idée de l'impact du changement En attendant les publications des données sur les élections municipales, je vous propose de découvrir l'impact du changement des règles pour les élections municipales 2020. ^ Davis GA. (1988). ↑ Davis GA. (1988). Jane Selverstone. Premium PDF Package. Within the Whipple Mountains, the detachment fault often crops out as a ledge of impermeable micro breccia. Le résultat de ces … A short summary of this paper. The role of extensional tectonics in the Caledonides of South Norway. Brecciated clasts within this zone have a matrix of chlorite, epidote, silica, and sulfide minerals, especially pyrite; the alteration and mineralization render … Davis and Lister [1989] attributed this discordance to multiple … Chloritic breccias beneath the Whipple detachment fault (WDF) have much lower seismic impedance than that of rocks occurring both structurally above and below. However, the significant thinning of the chloritic breccia zone to the southwest of the Whipple Mountains may have caused the poor image of the WDF on the CALCRUST profiles. What does Detachment fault mean? Rapid upward transport of mid-crustal mylonitic gneisses in the footwall of a Miocene detachment fault, Whipple Mountains, southeastern California. OSTI.GOV Conference: Evidence for late movement on the Whipple detachment fault, southeastern California plate of the Whipple detachment fault are defined by my- lonitic foliation and sheetlike granitic plutons [Davis et al., 1980, 1982]. Information and translations of Detachment fault in the most comprehensive dictionary definitions resource on the web. B. die Whipple Mountain Detachment Fault. Le client | Grisham John | download | Z-Library. Geology, 1994. Samples from the main Whipple detachment fault were collected at WA, BW1, BWSK, and BWNL. Fabric and microstructural analyses of the thick (>3.5 km) mylonitic sequence indicate that it represents an intracrustal zone of non-coaxial laminar flow with a predominant sense of northeastward shear. The present-day landform of the Whipple Mountains is a series of sub-parallel ridges trending northwest to southeast, cut at right angles by a large wash, (Whipple Wash), which bisects the entire range.These linear ridges mark the tops of tilted crustal blocks lying in the hanging wall of an extensive detachment fault, and the range as a whole comprises one of the best exposed … They are younger than or coeval with chloride brecciation, and those that record shear typically are either moderately northeast-dipping normal structures or steep, northwest-striking, southwest-down structures … Journal of Structural Geology, 14:1033–1046. Prominent crustal reflections beginning at 3-4 s were recorded on CALCRUST seismic profiles southwest of the Whipple Mountains. Yin, A., and Dunn, J.F., 1992, Structural and stratigraphic development of the Whipple-Chemehuevi detachment fault system, southeastern California: Implications for the geometrical evolution of domal and basinal low-angle normal faults: Geological Society of America Bulletin, v. 104, p. 659-674. Oxygen isotope compositions of epidote and quartz from chloritic breccias that underlie the detachment fault in the metamorphic core complex of the Whipple Mountains yielded quartz-epidote fractionations that range from 4.1 to 6.4 per mil and increase systematically toward the fault. Below the fault is a chlorite breccia zone, up to 400 feet thick, whose rocks have been altered, faulted, and brecciat ed. It is along such contacts that the cataclasite appears to be best developed. However, the my- lonitic foliation generally dips 5 o to 25 o more steeply than the fault [Davis, 1988]. On the web footwall of a Miocene detachment fault in the footwall of a Miocene detachment fault, Whipple,. 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