中国地质Issue(6)：2019-2027,9.
太平洋板块中生代俯冲构造事件的响应：来自黑龙江东部饶河三叠纪层状燧石的古地磁证据
The identification of Mesozoic Pacific plate subduction:Evidence from paleomagnetism of the Late Triassic bedded cherts in Raohe area, eastern Heilongjiang Province
摘要
Abstract
The bedded cherts in Raohe area of eastern Heilongjiang Province constitute a significant component of Mesozoic Wandashan orogenic ophiolitic melange. A new paleomagnetic investigation was carried out for a Triassic red chert sequence in the western part of the WOB, with totally 200 samples collected. The bedded cherts of Lower Triassic Dajiahe Formation in Wandashan Orogenic Belt (WOB) in eastern Heilongjiang Province have been partially or completely subjected to remagnetization. In combination with the data of tectonic evolution of Wandashan Orogenic Belt and micropaleontology, the authors hold that the time of remagnetization was Late Jurassic-Early Cretaceous, caused by the orogenic fluid related to the westward subduction of the Pacific Plate.关键词
中生代/层状燧石/重磁化/黑龙江东部/完达山造山带/太平洋板块Key words
Mesozoic/bedded cherts/remagnetization/eastern Heilongjiang Province/Wandashan Orogenic Belt/Pacific Plate分类
天文与地球科学引用本文复制引用
张雪锋,张世红,孟宪刚,李超,王彦明..太平洋板块中生代俯冲构造事件的响应：来自黑龙江东部饶河三叠纪层状燧石的古地磁证据[J].中国地质,2014,(6):2019-2027,9.基金项目
国家深部探测专项SinoProbe-02项目资助。 （）
