東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Exhumation of an ultrahigh-pressure ...

Xue, Feng.

Linked to FindBook

Google Book

Amazon

博客來

Exhumation of an ultrahigh-pressure metamorphic terrain in the Dabie Shan, China.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Exhumation of an ultrahigh-pressure metamorphic terrain in the Dabie Shan, China./
Author:	Xue, Feng.
Description:	256 p.
Notes:	Source: Dissertation Abstracts International, Volume: 59-11, Section: B, page: 5754.
Contained By:	Dissertation Abstracts International59-11B.
Subject:	Geology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9910942
ISBN:	9780599092990

Exhumation of an ultrahigh-pressure metamorphic terrain in the Dabie Shan, China.
Xue, Feng.

Exhumation of an ultrahigh-pressure metamorphic terrain in the Dabie Shan, China. - 256 p.

Source: Dissertation Abstracts International, Volume: 59-11, Section: B, page: 5754.

Thesis (Ph.D.)--The University of Chicago, 1998.

This dissertation is a field and laboratory based study of the exhumation of the Dabie Shan ultrahigh-pressure (UHP) metamorphic terrain, China. Large-scale structural mapping in the UHP terrain revealed a history that involves syn-UHP metamorphic juxtaposition of tectonolithologic units (D1/M 1), N-vergent top-to-the-N shearing and folding under amphibolite facies conditions (D2/M2), and refolding at shallow-levels. The UHP metamorphism occurred on a truly regional scale, as indicated by the remarkable structural concordance between the units containing UHP mineral assemblages and the enclosing quartzofeldspathic orthogneiss units, close similarity of the U-Pb zircon ages of metamorphism in UHP eclogites and quartzofeldspathic host-gneiss, and oxygen isotopes. The Huwan Detachment, a N-dipping, top-to-the-N shear zone discovered between the UHP footwall in the S and low-grade hanging-wall in the N, accounts for ca. 130 km of displacement in the Late Triassic and Early Jurassic. Detailed petrologic studies and structural mapping also led to the recognition of the Taihu Detachment, a S-dipping, top-to-the-S, greenschist facies ductile shear zone between the Hualiangting eclogite zone and northern Susong Complex, which was the locus of ca. 20 km of down-dip displacement at a relatively shallow level.

ISBN: 9780599092990Subjects--Topical Terms:

516570
Geology.

Exhumation of an ultrahigh-pressure metamorphic terrain in the Dabie Shan, China.
LDR:02923nmm a2200301 4500 001 2067225
005 20160226101824.5
008 170521s1998 ||||||||||||||||| ||eng d
020 $a 9780599092990
035 $a (MiAaPQ)AAI9910942
035 $a AAI9910942
040 $a MiAaPQ $c MiAaPQ
100 1 $a Xue, Feng. $3 3182067
245 1 0 $a Exhumation of an ultrahigh-pressure metamorphic terrain in the Dabie Shan, China.
300 $a 256 p.
500 $a Source: Dissertation Abstracts International, Volume: 59-11, Section: B, page: 5754.
500 $a Adviser: David B. Rowley.
502 $a Thesis (Ph.D.)--The University of Chicago, 1998.
520 $a This dissertation is a field and laboratory based study of the exhumation of the Dabie Shan ultrahigh-pressure (UHP) metamorphic terrain, China. Large-scale structural mapping in the UHP terrain revealed a history that involves syn-UHP metamorphic juxtaposition of tectonolithologic units (D1/M 1), N-vergent top-to-the-N shearing and folding under amphibolite facies conditions (D2/M2), and refolding at shallow-levels. The UHP metamorphism occurred on a truly regional scale, as indicated by the remarkable structural concordance between the units containing UHP mineral assemblages and the enclosing quartzofeldspathic orthogneiss units, close similarity of the U-Pb zircon ages of metamorphism in UHP eclogites and quartzofeldspathic host-gneiss, and oxygen isotopes. The Huwan Detachment, a N-dipping, top-to-the-N shear zone discovered between the UHP footwall in the S and low-grade hanging-wall in the N, accounts for ca. 130 km of displacement in the Late Triassic and Early Jurassic. Detailed petrologic studies and structural mapping also led to the recognition of the Taihu Detachment, a S-dipping, top-to-the-S, greenschist facies ductile shear zone between the Hualiangting eclogite zone and northern Susong Complex, which was the locus of ca. 20 km of down-dip displacement at a relatively shallow level.
520 $a The Dabie massif, a previously subducted continental slab, is thus bounded by two N-dipping fault systems, the Huwan Detachment above and the foreland thrusts below. The exhumation of the slab was made possible by simultaneous displacement along these faults, aided by extension at the top of the orogenic system (as represented by the Taihu Detachment) and synkinematic erosion. P-T-t history indicates that the majority of exhumation of the UHP/HP metamorphic terrain had been accomplished during the Late Triassic at rates of ca. 3--5 mm/yr, before subsequent slow (at ca. 0.5--0.8 and then ca. 0.1--0.2 mm/yr) denudation finally exposed the UHP terrain in the middle Jurassic.
590 $a School code: 0330.
650 4 $a Geology. $3 516570
650 4 $a Geochemistry. $3 539092
650 4 $a Mineralogy. $3 516743
690 $a 0372
690 $a 0996
690 $a 0411
710 2 $a The University of Chicago. $3 1017389
773 0 $t Dissertation Abstracts International $g 59-11B.
790 $a 0330
791 $a Ph.D.
792 $a 1998
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9910942