Neoarchean and Rhyacian TTG-Sanukitoid suites in the southern S?o Francisco Paleocontinent,Brazil:Ev

来源 :地学前缘:英文版 | 被引量 : 0次 | 上传用户:erdongzi
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
The southern portion of the Sao Francisco Palaeocontinent in Brazil is denoted by Archean nuclei and Paleoproterozoic magmatic arcs that were amalgamated during Siderian to Orosirian orogenic processes(ca.2.4-2.1 Ga).New isotopic U-Pb in zircon and Sm-Nd
其他文献
Ordovician diorite-quartz diorite mylonite(Saganoseki quartz diorite) was discovered in Sambagawa metamorphic terrane at the northern margin of Saganoseki Penin
Mount Cameroon volcano has erupted several times in the 20 th Century with documented eruptions in 1909,1922,1954,1959,1982,1999 and 2000.Evidence of historic v
目的通过对老年肺肿瘤手术病人进行综合呼吸功能训练,观察呼吸功能训练对病人术后呼吸功能状况的影响。方法便利抽取老年肺肿瘤手术病人60例,随机分为观察组30例与对照组30例
Video cameras are common at volcano observatories,but their utility is often limited during periods of crisis due to the large data volume from continuous acqui
<正>"透明"一词起源于现代艺术,立体主义绘画对时空关系的全新理解导致传统绘画固定视点和平面的做法被打破,纵深空间的压缩形成具有双关意味的交叠形态,带来多重体验和解读
这几年,随着我国经济和科学技术的迅速发展,我国的石油开采技术和设备也在迅速完善。即便如此,我国每年发生的因 石油开采设备存在不当而产生的事故和故障依旧屡见不鲜,这也
文章采用数值模拟方法研究了圆筒型吸附床的二维非稳态脱附传热过程,并基于综合导热系数和接触热阻分析了吸附剂的粒径和吸附床的总孔隙率对吸附床传热性能的影响,以及吸附床
当前随着我国社会经济的不断发展,信息技术的不断应用和升级,市场上企业之间的竞争越来越激烈,企业集团财务管理也面临着各种各样的问题,传统的企业财务管理已经不能适应当前
As the southernmost segment of the Central Asian Orogenic Belt(CAOB),the northern Alxa orogenic belt(NAOB)connects the southeastern and southwestern segments of
期刊