暗色岩是一种火成岩。
它们产于富含暗色岩和伟晶岩的古老地盾区内。
The deposits occur in the old shield which is rich in dark rocks and pegmatites.
同时，该层序内沉积的暗色泥岩也是有利的烃源岩。
The dark mudstone deposited in this time is the favorable source rock.
暗色泥岩有机质丰度中等—好，以腐泥—腐殖型和腐殖型为主，普遍进入成熟—高成熟阶段，是好的烃源岩。
Dark mudstone works as good source rock, with middle-good organic abundance, sapropel-humic and humic organic types as well as mature-high mature generation stage.
浊积岩沉积在正常的湖相暗色泥岩之中。
Turbidites were deposited in the dark shale of normal lake facies.
区内石炭—二叠纪煤系具有良好的煤型气及一定的煤层气潜力，中、下侏罗统和下白垩统暗色泥岩类是最具生油潜力的烃源岩系。
Permo Carboniferous coal series have relative good coal gas potential, dark mudstones in lower Jurassic, lower part of Middle Jurassic and lower Cretaceous are the best source rocks.
鄂尔多斯盆地东部地区太原组广泛发育的气源岩为生物灰岩、暗色泥岩和煤。
Biologic limestone, black mudstone and coal in Taiyuan group of lower Permian in east part of Ordos basin.
利用岩石薄片X衍射技术，在松辽盆地深层富碱酸性火山岩中识别出特征的碱性暗色矿物——钠铁闪石，从而确定其为碱流岩。
Using thin section X-ray diffraction techniques, his paper identified arfvedsonite in volcanic rocks from Songliao Basin, and thus confirmed that the volcanic rocks are composed of pantellerite.
金厂沟梁金矿区中与成矿伴生的暗色脉岩主要是细晶闪长岩石英闪长岩、闪长玢岩英安斑岩类。
The dark dikes associated with mineralization in the Jinchanggouliang mine area, are mostly fine diorite-quartz diorites and diorite porphyrite-dacite porphyries.
暗色泥质岩在全区的深坳陷和斜坡均有发育。
The dark shale is broadly forming in all the area of the slope and the deep depression.
鄂尔多斯盆地三叠系延长组长1段发育一套深湖相浊积岩及数层暗色泥岩。
Dark mudstones and the turbidites of deep lake facies were discovered recently in the Member 1 of Yanchang Formation, Upper Triassic in Ordos Basin.
济阳坳陷石炭二叠系烃源岩主要为煤和暗色泥岩。
In the Jiyang depression, the main Carboniferous-Permian hydrocarbon source rocks are coals and dark mudstones.
在东部坳陷的绝大部分地区三段地层暗色泥岩的有机碳含量都在1 0 %以上，是好的烃源岩。
The organic carbon content of these three sets of dark mudstones is more than 1.0% in most areas of the Eastern Depression, indicating that they are good source rocks.
研究区三叠系谭庄组有机质丰富的暗色泥岩是主要烃源岩，它厚度大、分布广，埋藏深度也大。
The dark mudstone in Triassic system of Tanzhuang Formation which rich for organic substance is mainly source rocks, which has large thickness, wide distribution and great burial depth.
具有无定形有机相的文昌组暗色泥岩是珠江口盆地良好的湖相油源岩。
The dark mudstones of the Wenchang Formation with AOM organic facies are potential lacustrine oil source rocks in the Pearl River Mouth Basin.
研究结果表明，沙四段下亚段盐间发育的暗色泥岩为主要烃源岩，属于“自生自储”型气藏。
The result shows that dark mudstone of lower Es4 is the main source rock and the gas reservoir belongs to source and reservoir in the same bed.
研究结果表明，沙四段下亚段盐间发育的暗色泥岩为主要烃源岩，属于“自生自储”型气藏。
The result shows that dark mudstone of lower Es4 is the main source rock and the gas reservoir belongs to source and reservoir in the same bed.
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