沉积体系域

岩性油气藏勘探的沉积体系域表征技术&以柴达木盆地为例

Characterization of Depositional System Tract for Exploration of Lithologic Pools-An example of Qaidam basin

塔里木盆地北部早石炭世沉积体系域的基本特征

Basic characteristics of the Early Carboniferous Depositional System Tract in the north of the Tarim Basin

本文最后对不同沉积体系域和两种层序界面的成岩特征进行了探讨。

Finally , the diagenetic features of different depositional system tracts and two types of sequence boundaries are discussed .

盆地相区的低水位沉积体系域和海侵沉积体系域较发育，而高水位沉积体系域不发育；

In basin facies area , lowstand and transgression depositional system tracts occur quite widely , but highstand depositional system tract does not .

本文根据层序地层学的基本原理，对塔里木盆地北部下石炭统沉积体系域的基本特征进行了描述。

Abstract Based on the principles of sequence stratigraphy , the paper described the basic characteristics of depositional system tract in the Lower Carboniferous .

由局部构造活动引起的相对海平面变化，对沉积体系域和界面类型有着明显的影响。

The relative changes of sea level caused by local tectonism have had distinct effect on depositional system tracts and types of boundary of the sequence stratigraphy .

层序Ⅲ和Ⅳ为河流相层序，分为基准面上升和基准面下降等2个沉积体系域。

While the sequence ⅲ and ⅳ are of fluvial facies and can be divided into a base level ascending and a base level descending system tracts .

层序构成和沉积体系域的发育分布受到盆地形成演化过程中各种构造作用的控制。

The sequence architecture and the distribution of depositional systems tracts were mainly controlled by a variety of tectonic activities during the formation and evolution of the basins .

每一层序还可细分出低水期、水进期、高水期沉积体系域以及组成它们的盆底扇、斜坡扇、滑塌扇，缓慢堆积段和各种类型楔状体沉积。

Each sequence can be subdivided into lowstand , transgression and high-stand depositional system tracts which consist of basin-floor fan , slope fan , slump fan , condensed section and various progradational wedges .

因此，化石群落的研究可以帮助识别和优化层序、沉积体系域和层序界面，从而为层序地层的准确识别划分提供新的思路。

Therefore , the study of fossil communities may help recognize and optimize sequences , sedimentary systems tracts and se-quence boundaries , thus providing a new approach to the accurate recognition and division of sequence stratigraphic units .

层序地层的理论和方法已在油气勘探开发中发挥重要作用，实践证明层序界面、沉积体系域对沉积、层控型矿床的成矿作用具控制作用。

The theory and method of sequence stratigraphy has played very important roles in exploration and development for oil and gas . It is also proved practically that sequence boundary and depositional system tract control the mineralization of sedimentary and strata-bound ore deposits .

根据沉积层序和体系域的演化特征，编制了相对海平面变化曲线。

A curve of relative fluctuation of sea level is compiled on the basis of sedimentary sequence and evolutionary characteristics of system domain .

本文全面总结了露头层序、测井层序及地震层序层序划分、层序界面、沉积体系和体系域的识别方法。

In this paper , The division of sequence in outcrop , log well and seismic and sequence interface and depositional system and system track was detailed discussed .

混合沉积在低位体系域最为发育，高位和湖侵体系域混合沉积作用受到抑制。

According to this study , we recognize four types of mixed deposits : parent material mixing , mixing due to gradual facies change , insitu mixing and gravity flow mixing .

其低位体系域和湖进体系域发育辫状河三角洲、滨浅湖滩坝、湖泊及浊积扇沉积；高位体系域沉积时期发育河流三角洲、滨浅湖滩坝和湖泊沉积。

Braided delta , the shore-shallow beach dam , the lake and the turbidite fan deposition development in low system tract and transgressive system tract . River delta , shore-shallow beach dam and lacustrine deposit development in highstand system tract .

对主要层序内部的岩性特征、沉积相构成、体系域发育状况、地层叠加样式等进行了分析。

Lithology , sedimentary facies , system development and formation stacking have also been studied .

其岩相古地理的演化过程可分为3个演化周期和8个演化阶段，它们分别与沉积层序和沉积体系域相对应。

The evolution process of the petrofacies palaeogeography consists of three cycles or eight phases , which correspond to sedimentary sequences or depositional system tracts respectively .

按微相组合或基本层序、沉积体系及沉积体系域逐级剖析的方法，可识别出61个基本层序和潮坪、浅水陆棚及开阔陆棚等3种沉积体系。

On the basis of order by order analysis of microfacies assemblages or essential sequences , depositional systems and depositional systems tracts , 61 essential sequences and three depositional systems ( i.e. tidal flat , shallow shelf and open shelf ) may be recognized .

结合国内外对强制海退沉积的最新研究进展，探讨了沉积层序体系域四分法的可行性和强制海退体系域的主要沉积特征。

The feasibility of quartation for system tract and main sedimentary characteristics of forced regression system tract have been discussed , based on the new advances in researches on forced regressive deposits at home and abroad .

湖盆层序是指在湖盆地内由沉积作用形成的一类层序，表现为随湖水面的升降变化沉积体系或体系域在时空上的变化。

Lake basin sequence is formed through and sedimentation , showing the changes of the sedimentary systems or system tracts in time and space with the lake level variation .