干旱区生态环境知识资源中心(Arid): Calcite twinning strains from syn-faulting calcite gouge: small-offset strike-slip, normal and thrust faults

Arid

DOI	10.1007/s00531-019-01783-x
	Calcite twinning strains from syn-faulting calcite gouge: small-offset strike-slip, normal and thrust faults
	Craddock, John P.1; Malone, David H.2; Wartman, Jakob 3,10; Kelly, Megan J.3,10; Liu Junlai 4,5; Bussolotto, Maura 6; Invernizzi, Chiara 7; Knott, Jeff 8; Porter, Ryan 9
通讯作者	Craddock, John P.
来源期刊	INTERNATIONAL JOURNAL OF EARTH SCIENCES
ISSN	1437-3254
EISSN	1437-3262
出版年	2020
卷号	109 期号:1 页码:1-42
英文摘要	We have evaluated the stress-strain behavior of calcite precipitated and mechanically twinned in small-offset strike-slip, normal and thrust faults of a variety of ages and from a variety of tectonic settings (n = 3001 twin measurements, 63 strain analyses from 18 field sites). Five strike-slip faults with syn-faulting, horizontally striated calcite (rake = 0 degrees) were studied and we report the orientations of the contemporaneous stress-strain field associated with each fault: intrusion of the Marathon Large Igneous Province mafic dikes ( 2.1 Ga in Archean crust, Minnesota, USA); post-Keweenaw rift (1.1 Ga) faulting (Island Lake fault, central Ontario, Canada); subduction associated with metamorphic core complex formation (Cretaceous, China); subduction (Cretaceous to Miocene, Italy), and continental extension (recently active Furnace Creek fault, Death Valley, California, USA). Seven normal faults with synfaulting, dip-slip striated calcite were studied and are from the following tectonic settings: a normal fault slip surface in an Ordovician Piedmont fold, Appalachian's; paleo-subduction associated with Cretaceous metamorphic core complex formation (China, 3 sites); the paleo-extensional Atlantic margin ( 55 Ma, Ireland, 1 site with a U-Pb calcite age); continental extension (1 active site, Mojave desert); a transcurrent margin (Jamaica, 1 active fault site), and subduction [2 active faults along the Eur-African margin in Italy (with calcite U-Th disequilibria ages) and Crete, respectively]. Six thrust fault examples are all from convergent orogenic settings: the basal thrust of the Penokean (1850 Ma) fold-and-thrust belt; the Penokean orogen foreland in Mesabi Range banded iron formation folds; an offset breccia body in the Permian Gondwanide belt, Ellsworth Mountains, Antarctica; the frontal thrust of the Gondwanide Cape belt, South Africa; the Paleocene frontal Prospect thrust, Sevier belt, Wyoming, and an Alpine foreland back-thrust, Lulworth Cove, U.K. For each strike-slip fault system the twinning shortening strain is horizontal and at an angle of 0 degrees-60 degrees to the respective fault plane (dextral or sinistral) although in the majority of cases the shortening axis is parallel to fault strike (13 of 23 results). In each normal fault example, dip-slip kinematic striations dominate the faulted surface yet the orientation of the maximum principal compressive stress (sigma(1)) and shortening strain axis (epsilon(1)) are not 45 degrees to the fault plane as predicted but are sub-horizontal and either strike-parallel (25 of 35 results) or strike-normal (10 of 35 results). Thrust faults preserve shortening strain axes parallel to the dip-slip kinematic direction, within the fault plane (plane strain) and not at 45 degrees to the principal plane (5 of 5 results). None of the fault stress-strain field results reported here support the Andersonian or Mohr-Coulomb criteria for stress-strain relations predicted along faults.
英文关键词	Fault mechanics Calcite strain analysis
类型	Article
语种	英语
国家	USA ; Peoples R China ; France ; Italy
收录类别	SCI-E
WOS记录号	WOS:000502119300001
WOS关键词	INTERMEDIATE PRINCIPAL STRESS ; METAMORPHIC CORE COMPLEXES ; LAKE-SUPERIOR REGION ; DELAWARE-WATER-GAP ; SAN-ANDREAS FAULT ; LOW-TEMPERATURE DEFORMATION ; MARTINSBURG SLATE ; FORELAND BASIN ; CONTINENTAL EXTENSION ; APPALACHIAN FORELAND
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
EI主题词	2019-12-04
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311570
作者单位	1.Macalester Coll, Dept Geol, St Paul, MN 55105 USA; 2.Illinois State Univ, Dept Geog Geol, Normal, IL 61790 USA; 3.Univ Minnesota, Dept Geol & Geophys, Minneapolis, MN 55118 USA; 4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, 29 Xueyuan Rd, Beijing, Peoples R China; 5.China Univ Geosci, Key Lab Lithosphere Tecton, 29 Xueyuan Rd, Beijing, Peoples R China; 6.17 Rue Descartes, F-69100 Villeurbanne, France; 7.Univ Camerino, Geol Div, Sch Sci & Technol, Camerino, Italy; 8.CSU Fullerton, Dept Geol Sci, 800 N State Coll Blvd, Fullerton, CA 93834 USA; 9.No Arizona Univ, Sch Earth Sci & Environm Sustainabil, Flagstaff, AZ 86011 USA; 10.Minnesota Dept Nat Resources, St Paul, MN USA
推荐引用方式 GB/T 7714	Craddock, John P.,Malone, David H.,Wartman, Jakob,et al. Calcite twinning strains from syn-faulting calcite gouge: small-offset strike-slip, normal and thrust faults[J],2020,109(1):1-42.
APA	Craddock, John P..,Malone, David H..,Wartman, Jakob.,Kelly, Megan J..,Liu Junlai.,...&Porter, Ryan.(2020).Calcite twinning strains from syn-faulting calcite gouge: small-offset strike-slip, normal and thrust faults.INTERNATIONAL JOURNAL OF EARTH SCIENCES,109(1),1-42.
MLA	Craddock, John P.,et al."Calcite twinning strains from syn-faulting calcite gouge: small-offset strike-slip, normal and thrust faults".INTERNATIONAL JOURNAL OF EARTH SCIENCES 109.1(2020):1-42.