胶东威海地区榴辉岩退变质的地球动力学信息

来源 :长春科技大学学报 | 被引量 : 2次 | 上传用户:killsmagicer
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
威海地区榴辉岩退变质过程表现为三个阶段:第一阶段,原生绿辉石分解形成钠质单斜辉石+斜长石合晶体;第二阶段,原生石榴石及钢质单斜辉石+斜长石合晶体,周边出现角闪石+斜长石 状反应边;第三阶段,石榴石及钢质单斜辉石消失。其后榴辉岩相退变质的p-t演化轨迹是压力相对温度快速降低的顺时针形式,反映本区榴辉岩折返的地球动力学过程可能是在经历了快速上升的构造侵位同时,晚元古宙巨量花岗岩浆可将相辉岩块体携带到上部地壳。
其他文献
The impact of interbasin water transfer on environment is very significant. The affected area of the west route scheme of the South to North Water Transfer Proj
This study applies theories of systems and system dynamics to ecological economic systems in the oasis environment, with the intention of finding the basic char
By use of the sheet of laser light and the trac-ing particle technology, flow visualization tests of complexflow structures for submerged impinging jets within
For the measurement of vertical profiles of sound speed in the sea using laser excited Brillouin scattering, a high resolution measurement of Brillouin frequency shift is required. In this work, a mo
According to the principle of the eruption of debris flows, the new torrent classification techniques are brought forward. The torrent there can be divided into
The mechanism of the fluid-solid coupled vi-bration is analyzed as the fluctuating pressure acts on the inletand the outlet slits of a slab. The parameter multi
Sedimentary successions and internal structure of the coastal barrier-lagoon system of Boao,eastern Hainan Island were studied through utilizing data from test
A field experiment was conducted to study the combined effect of nutrient and pest managements on soil biomass phospholipid contents, functional biodiversity an
An experiment concerning the sound propaga-tion in aerated open channel flow was designed and conductedin a variable slope chute. The acquisition of sound data
Total RNA was extracted from eyestalks of shrimp Penaeus chinensis. Eyestalk cDNA was obtained from total RNA by reverse transcription. Reverse transcriptase-po