The differences of their aggregation and sedimentary processes in water result in diversity of organic preservation in sediments.
在对水体中各类有机质特征充分调研的基础上,依据成因和形态特征划分出生物有机质、溶解有机质、胶体有机质和聚合有机质四种基本形式,它们在有机质的聚集和沉积作用过程中的特征和差异性,必将影响沉积物中有机质保存的多样性。
Effect of tectonic movement in Paleogene on sedimentation of Shulu Depression;
束鹿凹陷古近纪构造活动对沉积作用的影响
Modern coastal sedimentation in Beihai,Guangxi;
广西北海现代海岸沉积作用
Research on sedimentations and material sources in the eastern South China Sea;
南海东部海域的沉积作用和物质来源研究
chemically formed sedimentary rock
化学作用形成的沉积岩
organically formed sedimentart rock
生物作用形成的沉积岩
mechanically formed sedimentary rock
机械作用形成的沉积岩
The process of chemical and physical change in deposited sediment during its conversion to rock.
成岩作用在岩石转化过程中沉积物发生化学和物理变化的过程
The sedimentary rock-hosted micrograined and disseminated gold deposits in Guizhou were formed by complex geological and geochemical processes in low temperature and open system.
贵州赋存于沉积岩中的微细浸染型金矿床为低温开放体系中经复杂地质地球化学作用形成。
Chemical rocks are formed from materials either directly precipitated from solution or secreted by the activities of plants or animals.
化学沉积岩可以是由溶液直接沉淀的物质形成，也可是由植物或动物活动分泌物质而形成。
a sedimentary rock formed from clay deposits.
一种由粘土沉淀物形成的沉积岩。
Formed from matter deposited by water, as certain sedimentary rocks.
水成岩由水中沉淀的物质形成的，如某种沉积岩
These changes reflect the effects of burial diagenesis on the originally deposited clay mineral assemblage.
这种变化反映了埋藏成岩作用对原来沉积的粘土矿物组合的影响。
Impact of Reductive Diagenesis on Magnetic Records of Marine Sediments and Its Environmental Implications;
还原成岩作用对海洋沉积物磁记录的影响及其环境学意义
Dissovled substances are brought to the oceans by rivers, and under suitable conditions may be precipitated or extracted by organisms to form chemical rocks.
溶解的物质被河流带入海洋，在适宜的条件下可沉淀下来或是被有机物萃取而形成化学沉积岩。
The sedimentary rocks did not dome.
沉积岩没有形成穹丘。
a sedimentary rock formed of coarse-grained material.
一种由粗颗粒物质形成的沉积岩。
Stud on Carbonate Petro;ogy, Sedimentology and Sedimentational Synchrony of Late Cambrian in the North Part of North China Platform;
华北北部晚寒武世碳酸盐岩岩石学沉积学及沉积作用等时性研究
Depositional-diagenetic coupling complex of Xujiahe sandstone in Hebaochang Block in the south part of the Central Sichuan Basin
川中南河包场须家河组砂岩沉积—成岩作用
Loose sediments may be changed into solid sedimentary rocks.
松散的沉积物可以变成坚硬的沉积岩。
DIAGENESIS AND RESERVOIR TYPES OF SLOPE-BASIN SEDIMENTS IN CAMBRIAN OF LOWER YANGTSE REGION
下扬子区寒武纪斜坡－盆地相沉积的成岩作用及储集类型
A Study on the Distribution、Origin and the Early Diagenesis of Organic Matter in Pearl River Estuary and Adjacent Shelf;
珠江口及近海沉积有机质的分布、来源及其早期成岩作用研究