东昆仑沙松乌拉地区发现的早寒武纪异源类及地质意义  

East Kunlun Abies holophylla urapidil area found in the Early Cambrian heterologous types and their geological significance

作　　者：陈发彬 保广普 刘荣 

机构地区：[1]青海省地质地调院,青海省青藏高原北部地质过程与矿产资源重点实验室,青海西宁810012

出　　处：《中国科技信息》2013年第23期25-27,共3页China Science and Technology Information

基　　金：青海1:5万沙松乌拉地区四幅区调(项目编号:1212010918020)

摘　　要：东昆仑沙松乌拉地区发现的寒武纪异源类化石,其组合为Leiosphaeridia sp。(光面球藻)、lophosphaeridium sp,(瘤面球藻)Trachysphaeridium sp。(鲛面球藻)、Heliosphaeridium sp。(射棘球藻)Pterospermella sp。(翼球藻)Brocholaminaria nigrita Ouyangetal。(黑色穴面膜片),根据所获的疑源类化石组合,其时代应当为早寒武世。早寒武世异源类化石的发现进一步证明了早寒武世沙松乌拉组在东昆仑南坡俯冲增生杂岩带中的存在,对研究东昆仑地区中新元古代和早古生代的地质构造演化史具有重要意义。the East Kunlun Abies holophylla urapidil area found in the Cambrian fossils in the heterologous, combination is Leiosphaeridia sp. （smooth ball）, lophosphaeridium sp （tumor surface sp.）, Trachysphaeridium sp （SP, Heliosphaeridium shark face sp.）. （shot spines were Pterospermella sp （wing）. Brocholaminaria nigrita Ouyangetal sp.）. （black hole mask）, to capture the acritarch fossil assemblage, the time should be the early cambrian.Early Cambrian heterologous types of fossils found further evidence of the Early Cambrian in East Kunlun Shisha pine Ulla Group Southern subduction accretionary complex rock zone of the East Kunlun existence, to study in the Neoproterozoic and early Paleozoic tectonic evolution history is of great significance.

关 键 词：沙松乌拉组 早古生代 早寒武世 异源类 构造演化 

分 类 号：Q911[天文地球—古生物学与地层学] P534.1[生物学—古生物学]