大陆造山过程的多期演化:以西大别为例

被引：14

作者：

吴元保 ^{[1
,2
]}

机构：

[1] 地质过程与矿产资源国家重点实验室,中国地质大学(武汉)地球科学学院

[2] 西北大学地质学系,大陆动力学国家重点实验室

来源：

科学通报 | 2009年 / 54卷 / 13期

关键词：

大陆碰撞造山带; 古特提斯洋; 榴辉岩相变质; 锆石U-Pb年龄; Hf同位素; 石炭纪; 三叠纪;

D O I：

暂无

中图分类号：

P542 [构造运动];

学科分类号：

摘要：

大陆碰撞造山带的形成和演化是汇聚板块边缘的重要特征,其形成和演化大多经历了复杂的过程.以西大别为例,利用锆石成因矿物学、U-Pb年龄和Hf同位素组成特点等,结合区域地质情况,对造山带的多期演化提供了较为重要的制约.结果得到,浒湾地区洋壳的形成时间约为400～430Ma,稍晚于北秦岭与华北的碰撞时间,可能是碰撞后扬子板块北缘伸展作用形成的边缘盆地.浒湾地区榴辉岩相变质作用峰期发生在约310Ma的石炭纪,浒湾地区洋壳初始抬升时间约为270Ma.新县和红安地区榴辉岩的原岩时代和性质与大别-苏鲁其他地体一致,超高压变质作用也发生在中三叠纪,并经历了多阶段的抬升作用过程,应该是大别-苏鲁造山带的西延部分.因此,秦岭-大别-苏鲁地区是一个典型的多阶段复合型造山带,其聚合过程可能持续了200Ma以上.

引用

页码：1815 / 1825

页数：11

共 65 条

[41]

Deformation, mass transfer and mineral reactions in an eclogite facies shear zone in a polymetamorphic metapelite (Monte Rosa nappe, western Alps)[J] . L. M.Keller,R.Abart,H.Stünitz,C.De Capitani.Journal of Metamorphic Geology . 2004 (2)

[42]

Discovery of metamorphic diamonds in central China: an indication of a >?4000‐km‐long zone of deep subduction resulting from multiple continental collisions[J] . JingsuiYang,ZhiqinXu,Larissa F.Dobrzhinetskaya,Harry W.Green,XianzhiPei,RendengShi,CailaiWu,Joseph L.Wooden,JianxinZhang,YushengWan,HaibingLi.Terra Nova . 2003 (6)

[43] Egypt [J].

Zivancevic, N .

AMERICAN BOOK REVIEW, 2003, 24 (03) :23-24

[44]

Carboniferous and Triassic eclogites in the western Dabie Mountains, east‐central China: evidence for protracted convergence of the North and South China Blocks[J] . WeidongSun,I. S.Williams,ShuguangLi.Journal of Metamorphic Geology . 2002 (9)

[45]

Oscillatory zoning in eclogitic garnet and amphibole, Northern Serpentinite Melange, Cuba: a record of tectonic instability during subduction?[J] . A.García‐Casco,R. L.Torres‐Roldán,G.Millán,P.Monié,J.Schneider.Journal of Metamorphic Geology . 2002 (6)

[46]

K‐rich fluid metasomatism at high‐pressure metamorphic conditions: Lawsonite decomposition in rodingitized ultramafite of the Maksyutovo Complex, Southern Urals (Russia)[J] . B.Schulte,S.Sindern.Journal of Metamorphic Geology . 2002 (6)

[47]

The eclogites of the Marun–Keu complex, Polar Urals (Russia): fluid control on reaction kinetics and metasomatism during high P metamorphism[J] . LITHOS . 2002 (1)

[48]

Constraints on timing of peak and retrograde metamorphism in the Dabie Shan Ultrahigh-Pressure Metamorphic Belt, east-central China, using U–Th–Pb dating of zircon and monazite[J] . John C Ayers,Stacie Dunkle,Shan Gao,Calvin F Miller.Chemical Geology . 2002 (3)

[49]

Petrological, isotopic and fluid inclusion studies of eclogites from Sujiahe, NW Dabie Shan (China)[J] . Bin Fu,Yong-Fei Zheng,Jacques L.R. Touret.Chemical Geology . 2002 (1)

[50]

Zircon trace element geochemistry: partitioning with garnet and the link between U–Pb ages and metamorphism[J] . Daniela Rubatto.Chemical Geology . 2002 (1)

← 1 2 3 4 5 6 7 →