构造——蛇绿混杂岩工作方法、研究途径及填图单位划分

板块聚敛、洋盆封闭，洋壳残片（蛇绿岩）构造侵位到陆壳（陆源碎屑岩）之上形成了构造－－蛇绿混杂岩。它由以脆性剪切破裂为主的刚性构造包体和以韧－脆性剪切变形为主的剪切基质两部分组成。由构造－－蛇绿混杂岩研究应采用大比例尺精细露头填图，详测剖综合研究方法。同时对构造－－蛇绿混杂岩带填图单位划分方案进行了讨论，提出了对构造－－蛇绿混杂岩带建立杂岩。对蛇绿岩刚性构造块体建立杂岩组合、杂岩体等级体制划分方案；对其它刚性构造块体建立岩片、岩块级非正式地层单位，对剪切基质建立相当与岩组，岩段级非正式地层单位。

PARTITION OF THE MAPPING UNITS AND THE GUIDANCE FOR STUDY OF STRUCTURAL-OPHIOLITIC MIGMATITIC COMPLEX

Structural ophiolitic migmatitic complex was formed by converge of plates, closed ocean basin and remains of oceanic crust (ophiolitic rock) structural incursion over the continental crust ( continental debris). It was buildup by two parts of rigidity structural inclusions dominant in brittle shearing fractures and shearing groundmass dominant in ductile brittle deformation. The comprehensive methods of detailed geological mapping of outcrops at a large scale and detailed surveying profile should be used in studying the structural ophiolitic complex. Discussion of the partition plan of the mapping units of the structural ophiolitic complex has been made in this paper and it puts forward to make complex composition for structural ophiolictc complex. The complex composition and its classification can be made in the rigidity structural massive of ophiolitic rocks. Some informal stratigraphic units, such as rock piece and rock massive, can be recognized from other rigidity structural massives. The informal stratigraphic unit relevant to rock group and rock phases can be made from shearing groundmass.