RAPID EMPLACEMENT OF YOUNG OCEANIC LITHOSPHERE - ARGON GEOCHRONOLOGY OF THE OMAN OPHIOLITE

被引：137

作者：

HACKER, BR

机构：

[1] Geological and Environmental Sciences, Stanford University, Stanford

来源：

SCIENCE | 1994年 / 265卷 / 5178期

关键词：

D O I：

10.1126/science.265.5178.1563

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

40Ar/39Ar dates of emplacement-related metamorphic rocks beneath the Samail ophiolite in Oman show that cooling to <525 degrees C occurred within similar to 1 million years of igneous crystallization of the ophiolite. This unexpectedly short time span and rapid cooling means that old, cold continental or oceanic lithosphere must have been adjacent to the ophiolite during spreading and then been thrust beneath the ophiolite almost immediately afterward.

引用

页码：1563 / 1565

页数：3

共 41 条

[1]

ALLEMANN F, 1972, Eclogae Geologicae Helvetiae, V65, P657

[2]

[Anonymous], OPHIOLITE GENESIS EV

[3] SHEAR ZONES, THRUSTS AND RELATED MAGMATISM IN THE OMAN OPHIOLITE - INITIATION OF THRUSTING ON AN OCEANIC RIDGE [J].