whipple detachment fault

About me ¡Hola! OSTI.GOV Conference: Evidence for late movement on the Whipple detachment fault, southeastern California 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. Le client | Grisham John | download | Z-Library. What does Detachment fault mean? Le résultat de ces … 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. Journal of Structural Geology, 14:1033–1046. Information and translations of Detachment fault in the most comprehensive dictionary definitions resource on the web. de Abscherungen des Kernkomplextyps sind sehr häufig im südöstlichen Kalifornien anzutreffen, so z. Journal of Structural Geology, 14, 1033-1046. 1), has an areal extent in excess of 10,000 km 2, involves a relative displacement of at least 40 km, and juxtaposes rock types with radically different geological histories (Davis & Lister 1988). Journal of Structural Geology, 14:1033–1046. Below the fault is a chlorite breccia zone, up to 400 feet thick, whose rocks have been altered, faulted, and brecciat ed. 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. ↑Fossen H. (1992). The role of extensional tectonics in the Caledonides of South Norway. Jane Selverstone. Download Free PDF. Within the Whipple Mountains, the detachment fault often crops out as a ledge of impermeable micro breccia. ↑ Davis GA. (1988). However, the my- lonitic foliation generally dips 5 o to 25 o more steeply than the fault [Davis, 1988]. The role of extensional tectonics in the Caledonides of South Norway. Download PDF. Definition of Detachment fault in the Definitions.net dictionary. Dorsey, R.J., and Roberts, Patricia, 1996, Evolution of the Miocene north Whipple basin in the Aubrey Hills, western Arizona, upper plate of the Whipple detachment fault, in Beratan, K.K., ed., Reconstructing the history of Basin and Range extension using sedimentology and stratigraphy: Geological Society of America Special Paper 303, p. 127-146. the Whipple Mountain Detachment Fault. Compared to the main detachment, MDs … The Whipple detachment fault (WDF) is a low-angle normal fault (LANF) that accommodated 40–50 km of top-NE extension from ∼25 to 16 Ma (Davis et al., 1980). Chloritic breccias beneath the Whipple detachment fault (WDF) have much lower seismic impedance than that of rocks occurring both structurally above and below. This paper. 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. Il précise alors comment certaines épreuves ont été modifiées, d’autres ajoutées ou retirées. Samples from the main Whipple detachment fault were collected at WA, BW1, BWSK, and BWNL. Rapid upward transport of mid-crustal mylonitic gneisses in the footwall of a Miocene detachment fault, Whipple Mountains, southeastern California. 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. en Detachment fault related shear zones can be found in southeastern California, e.g. Download books for free. Geology, 1994. A short summary of this paper. ↑ Davis, G.A. 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. 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) We conclude that a large rollover growth structure formed in the hanging wall of the Whipple detachment fault shortly prior to emplacement of the voluminous War Eagle landslide (megabreccia). Whipple Mtn. Rapid upward transport of mid-crustal mylonitic gneisses in the footwall of a Miocene detachment fault, Whipple Mountains, southeastern California. PDF. Brecciated clasts within this zone have a matrix of chlorite, epidote, silica, and sulfide minerals, especially pyrite; the alteration and mineralization render … 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. Rapid upward transport of mid-crustal mylonitic gneisses in the footwall of a Miocene detachment fault, Whipple Mountains, southeastern California. The footwall was exhumed from below the brittle–ductile transition and has a ∼3.5 km thick mylonite zone with the same shear sense as the brittle slip on the detachment surface and that is … The detachment faul tis characterized by a typically smooth, planar fault surface which is … 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. ↑Haakon Fossen. 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