中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2014年
12期
81-88
,共8页
旋卷构造%弧形褶皱%逆掩推覆%走滑剪切%完达山%黑龙江省
鏇捲構造%弧形褶皺%逆掩推覆%走滑剪切%完達山%黑龍江省
선권구조%호형습추%역엄추복%주활전절%완체산%흑룡강성
vortex structure%arc-like fold%thrusting nappe%strike-slip shearing%Wandashan%Heilongjiang Province
完达山区旋卷构造位于黑龙江省东部，发育于完达山优地槽褶皱带内，构成饶河复背斜。该复背斜总体呈近南北向，略向西突出的弧形逆掩推覆于宝清过渡带。用旋卷构造“三大特征”对比，一系列弧形褶皱和断裂向北东方向收敛，向南东方向撒开，围绕以蛤蟆河岩体为中心旋扭，内旋面向撒开方向、外旋面向收敛方向旋扭，具压性—压扭性特征。这一旋卷构造是由富锦——小佳河断裂的剪切牵引为主、敦密深大断裂的左旋走滑剪切为辅的联合作用形成的。根据旋扭构造的发育情况大体划分了三个旋扭层。目前已知的铜金矿（点）床主要分布于各旋扭层的撒开段，但收敛段找矿潜力较大，其次为各旋扭层界面和向西弧形突出部位也具一定的找矿潜力。
完達山區鏇捲構造位于黑龍江省東部，髮育于完達山優地槽褶皺帶內，構成饒河複揹斜。該複揹斜總體呈近南北嚮，略嚮西突齣的弧形逆掩推覆于寶清過渡帶。用鏇捲構造“三大特徵”對比，一繫列弧形褶皺和斷裂嚮北東方嚮收斂，嚮南東方嚮撒開，圍繞以蛤蟆河巖體為中心鏇扭，內鏇麵嚮撒開方嚮、外鏇麵嚮收斂方嚮鏇扭，具壓性—壓扭性特徵。這一鏇捲構造是由富錦——小佳河斷裂的剪切牽引為主、敦密深大斷裂的左鏇走滑剪切為輔的聯閤作用形成的。根據鏇扭構造的髮育情況大體劃分瞭三箇鏇扭層。目前已知的銅金礦（點）床主要分佈于各鏇扭層的撒開段，但收斂段找礦潛力較大，其次為各鏇扭層界麵和嚮西弧形突齣部位也具一定的找礦潛力。
완체산구선권구조위우흑룡강성동부，발육우완체산우지조습추대내，구성요하복배사。해복배사총체정근남북향，략향서돌출적호형역엄추복우보청과도대。용선권구조“삼대특정”대비，일계렬호형습추화단렬향북동방향수렴，향남동방향살개，위요이합마하암체위중심선뉴，내선면향살개방향、외선면향수렴방향선뉴，구압성—압뉴성특정。저일선권구조시유부금——소가하단렬적전절견인위주、돈밀심대단렬적좌선주활전절위보적연합작용형성적。근거선뉴구조적발육정황대체화분료삼개선뉴층。목전이지적동금광（점）상주요분포우각선뉴층적살개단，단수렴단조광잠력교대，기차위각선뉴층계면화향서호형돌출부위야구일정적조광잠력。
The Wandashan vortex structure is situated in eastern Heilongjiang, within the Wandashan eugeosyncline folded belt, and made up Raohe anticlinorium. The anticlinorium strike is near NS as a whole, slightly westward extrusive arc thrusting nappe overlying on the Baoqing transition zone. Compared with“three major features”of vortex structure, a series of arc-like folds and faults conver?gent northeastwardly and dispersed southeastwardly. Taking the Hamahe rock body as the center twisted, internal rotation face twists to?ward dispersed direction, outer rotation face twists toward convergent direction with compressive—compresso-shear characters. The vortex structure is formed by Fujin—Xiaojiahe fault shearing and traction, supplemented by Dunhua—Mishan discordogenic fault levo?rotatory strike-slip shearing. Based on the vortex structure development divided 3 twist layers in principle. Known copper-gold depos?its (spots) mainly distributed on twist layer dispersed sectors, but convergent sectors have larger prospecting potential, then the interfac?es of twist layers and westward extrusive arc position.
