Lacustrine source rocks provided resource for the oil and gas generation, and flood plain facies and paludal facies mudstone supplied cap rock for the reservoir accumulation.
泛滥平原相、沼泽相泥岩为油气成藏提供了良好盖层条件;
Lacustrine source rocks provided resource for the oil and gas generation, and flood plain facies and paludal facies mudstone supplied cap rock for the reservoir accumulation.
泛滥平原相、沼泽相泥岩为油气成藏提供了良好盖层条件;
In the ocean basin spreading stage of Middle Silurian, it formed a increase metamorphic charateristics with lotrite facies→low green schist facies→hornblende facies.
中志留世末洋阶段,形成葡萄石、绿纤石相→低绿片岩相→角闪岩相递增变质特征;
7.In the ocean basin spreading stage of Middle Silurian,it formed a increase metamorphic charateristics with lotrite facies→low green schist facies→hornblende facies.
中志留世末洋阶段 ,形成葡萄石、绿纤石相→低绿片岩相→角闪岩相递增变质特征 ;
The former three stages reflect the major process of eclogite facies metamorphism and the latest stages the light overprinting of greenschist facies retrometamorphism at the shallow level of crust.
前三个阶段反映了辉岩相变质作用主要过程。后一阶段,反映了辉岩在地壳浅部层次绿片岩相环境下遭受轻微叠加改造。
The thin sand bed is composed of tight mixed type cementation facies and untight mixed type cementation facies.
其中,薄砂层由致密混合胶结相和非致密混合胶结相组成;
The metamorphic grades of Minleh and Changma areas are prehnite-pumpellyite and prehnite-actinolite facies, respectively.
民乐与昌马地区变质火山岩,变质度分别为葡萄石-绿纤石相和葡萄石-阳起石相。
Shanxi Formation is a set of paralic continental deposit,of which,fluvial,swamp and lacustrine facies alternatively presented regularly.
山西组为一套近陆相沉积,其中河流相、沼泽相及湖泊相有规律地交替出现。
Cuspate deltaic sands micro-facies, which formed at the time of powerful wave action, the continuity of marine distributary channel is bad, and distributes in cuspate shape. 3.
3、坨状三角洲砂体微相,形成时波浪作用很强,水下分流河道连续性较差,呈坨状分布。
The author suggests that the Zhiluo Formation belongs to the typical fluvial sedimentary facies, which cab be further refined to the channel, flood-plain and backswamp microfacies.
研究认为,直罗组属典河流相沉积,进一步可细分为河床亚相、河漫滩亚相和漫滩沼泽亚相。
, volcanic lava and pyroclastic rocks, of which the lithophysa rhyolite, pellets rhyolite and ignimbrite are favorable reservoirs.Lithofacies can be divided into 5 facies and 16 subfacies.
研究表明:该区火山岩划分为火山熔岩和火山碎屑岩两大类,其中石泡流纹岩、球粒流纹岩及熔结凝灰岩为有利储层。
The northern belt is made up of the lower continental mictite-clay rock combination of shallow-marine facies;
二、古元古宙南带和北带组成 介于南北两个太古宙克拉通基底之间古元古宙褶皱带,具有典不对称格局,从组成上具有显著差异分带性,即在北带发育了从底部浅—滨相陆缘碎屑—粘土岩建造依次过渡为属于中酸性火山—沉积建造底中酸性喷发岩和含火山碎屑物质—碳酸盐沉积岩、浅相含碳酸盐岩富碳陆缘粘土沉积建造、大陆架环境下中碳酸盐岩—粘土岩建造、浅相陆缘粘土岩—碎屑岩建造。
After rapid overall swelling , in the late stage occurred alluvial fan-braided river facies sedimentary cycles made of red polyterrigenous molasse deposit s with multi-source supplying.
晚期全区讯速台升,形成冲积扇~辫状河流相磨拉石红色复陆屑沉积旋回及多物源供应格局。
To date, komatiites with spinifex textures have not been found in the supracrustal rocks, but rock sequences similar to greenstones metamorphosed up to upper amphibolite facies are often observed.
在龙岗地块与北带之间接触带上,发育了一条晚太古宙-古元古宙时期线性活动带。
Dissolution is controlled by both sedimentation and tectonization, and the converted degree on reservoirs is closely related to sedimentary facies and the distance from unconformity interfaces.
溶解作用受沉积和构造作用控制,其对储层改造程度与沉积相带及距不整合面距离密切相关。
Site soils in southern area of Jiangsu province belong to washland sediment or limnetic facies sediment.The components of sediment are very complex and process of sedimentation is in disorder.
苏南地区场地土主要为漫滩相、湖沼相或冲湖相新近沉积软弱土,结构松散,沉积零乱,成分复杂,饱水可液化粉细砂层及粉土层较为发育,在地震或动力荷载作用下有可能发生软土震陷或砂土液化。
Its original rock is sedimented in the environment of active epicontinent-seaboard with basic volcanism, and become khondalite series through the Archean regional high-amphibolite facies metamorphism.
原岩形成于具有基性火山作用活动大陆边缘滨-浅环境。经过太古宙区域高角闪岩相变质作用,形成孔兹岩系。
The sedimentary facies in Heshilafu is an alluvial fan - fan delta -lake systetn, and it can be further devided into several parfacies including microfacies.
和什拉甫地区沉积相类为冲积扇──扇三角洲──湖泊沉积体系,进一步分为几种亚相类和微相类。
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