生物成因的

Using established dynamics model, the author has explained the genesis of numerous dolichos lablab limestone and siliceous limestone in the two growing stages of southern China, i.e. carbonates developing stages (Donggangling stage of middle Devonian and Changxing stage of late Permian). Because numerous carbonate rocks have been produced on the platform, at the same time, it is one of ignored material sources that numerous carbonate lime-mud have been transported from platform to basin.

运用所建立的动力学模型对中国南方两个重要的成礁期，即生物碳酸盐发育期(中泥盆世东岗岭和晚二叠世长兴期)，台盆内大量扁豆状灰岩和硅质灰岩的成因做了解释，因为台地上大量碳酸盐生产的同时，由台地向盆地输送的大量碳酸盐灰泥是盆地内的一个不可忽略的物质来源。

It was concluded that a noble and base metal metaflogenic series was composed of the inner part of BIFs and ferruginous rock series. And mantle plume had close spatio-temporal and genetic relationships with BIFs. In anoxic environment in Precambrian, the anaerobic bacteria would provide oxygen for ferruginous deposition during photosynthesis.

认为BIFs内部以及包括BIFs在内的含铁岩系均构成贱、贵金属成矿系列；地幔柱与BIFs之间存在密切的时、空和成因联系；在早前寒武纪缺权的环境下，厌氧的细菌类生物通过光合作用为BIFs中铁质沉淀提供了氧。

By using geological and geochemical data, the genetic type of the Silurian asphaltic sandstones in Tarim Basin is investigated and divided as the following:(1)Oxidized asphalt on surface or in shallow-layer is the heavy asphalt crude and solid oxidized asphalt or gilsonite formed by volatilization, oxidization, water washing and biodegradation in oil-layer outcrop area or near earth surface.

通过对地质、地球化学等资料的研究，认为塔里木盆地志留系沥青砂岩有5种成因类型：①表生—浅层氧化沥青是指在油层露头区或油层位于近地表处，由于挥发、氧化、水洗和生物降解等作用而形成的一些焦油状沥青质重油以及固体浅层氧化沥青或硬质沥青。

Base on above studies, some conclusions were obtained as follows:(1) ore-forming background of the studied ferromanganese crusts are mainly controlled by intensity of Antarctic Bottom Waters and variations of material source;(2) it is confirmed that the ferromanganese crusts are mainly hydrogenetic and their composition are affected by volcanic and continental material simultaneously; there are no obvious phosphatization reconstruction and element reaction occurred in them, so they have important paleoceanological significance;(3) from researches on element occurrence modes in the new-type ferromanganese crusts and the lying sediments, it is proposed that there is no great biological affection on the crusts formation and their composition mainly came from the adsorptive action of the ferromanganese oxides in them;(4) two major types of ore-controlling factors are identified through compilation of ore-controlling factors, which are geological and oceanic factors;(5) considering the long-term variation trends of the crusts composition, combing the U-series and 10Be isotope dating results, it is proposed that the ore-forming processes of ferromanganese crusts in the studied areas can be divided into three major stages (5.6~2.8 Ma, 2.8~2.7 Ma and since 2.7 Ma), and then the activities of AABW since the Late Miocene, changes of input flux coming from volcanic and continental material are confirmed.

通过研究，得出如下结论：(1)研究区铁锰结壳的成矿背景主要受控于南极底流强弱及物源供给的变化；(2)证实铁锰结壳主要为水成成因，同时其物质组成也受一定程度的火山和陆源物质的影响；结壳自形成以来没有遭受到明显的磷酸盐化等成岩后期改造和元素再迁移，具有重要的古海洋学意义；(3)通过新型铁锰结壳及下伏沉积物元素赋存状态的研究，认为生物作用对研究区结壳的形成并没有很大的直接影响，其物质成分主要来自于结壳中铁锰氧化物的吸附作用；(4)在控矿要素的研究中，归纳出了地质与海洋两大类结壳控矿要素；(5)根据结壳成分长周期变化趋势，结合铀系和10Be测年结果，将研究区结壳的形成过程划分为三个主要阶段(5.6~2.8 Ma，2.8~2.7 Ma和2.7 Ma以来)，并确定了晚中新世以来研究区南极底流的活动情况、火山和大陆来源物质输入量的变化。

Studies on impact-related minerals, geochemical anomalies, impact microspherules and microtektites enable us to define frequencies, magnitudes and types of impact bodies of extraterrestrial impact events. Impact layers and ejectas may not only provide distinct event markers in high-resolution stratigraphical correlation, but also potential interpretations for the catastrophic changes and their causes of life and global environment.

通过对撞击地层层序的时空变化、所包含的撞击成因矿物、撞击微球粒和微玻璃陨石以及古生物和地球化学异常等的研究，可以了解撞击事件的发生频率、幅度和撞击天体的性质等，也为探索生物和地球环境的灾难性变化及其起因提供了新的思路。

Studies on impactrelated minerals, geochemical anomalies, impact microspherules and microtektites enable us to define frequencies, magnitudes and types of impact bodies of extraterrestrial impact events. Impact layers and ejectas may not only provide distinct event markers in highresolution stratigraphical correlation, but also potential interpretations for the catastrophic changes and their causes of life and global environment.

通过对撞击地层层序的时空变化、所包含的撞击成因矿物、撞击微球粒和微玻璃陨石以及古生物和地球化学异常等的研究，可以了解撞击事件的发生频率、幅度和撞击天体的性质等，也为探索生物和地球环境的灾难性变化及其起因提供了新的思路。

For disclosing the morphogenesis of stromatolites , the chinese stromatolite workers more recently began to approach the models of biofabrics in cherty stromatolites and formation causes of laminae as well as the growth, movement and mat-making courses of microorganisms in stromatolites

近年来，为了揭示叠层石的形态发生，中国学者正在探讨硅质叠层石的生物组构模式和叠层石微层理的成因，以及叠层石中微生物生长、运动和造席过程。

These kaolinitic rocks constitute one of the major natural resources and non-metallic deposits, and are of important development and utilization value. In this paper, the distribution and research history of the kaolinitic rocks in Chinese coal measures are briefly introduced and the composition, text...

本文介绍了中国煤系高岭岩资源概况、研究简史；根据成分、结构、地质产状等特征，提出了中国煤系高岭岩的成因类型；对生物和有机质在其形成中的作用进行了分析和探讨，并结合有机酸溶解矿物模拟实验对其成矿作用做了初步探索；最后对煤系高岭岩的某些关键性加工技术进行了简述。

Which by their causes, and the water depth can be divided into two parts, one is basically the edge of the continental shelf sea (such as the Kara Sea, Laptev Sea, East Siberian Sea, Chukchi Sea, Beaufort Sea, Baffin Bay, Hudson Bay, etc.); Second, the central part of the Arctic Ocean, all kinds of ice widespread, most of the waters as "permanent ice zone" of biological resources than the poor.

后者按成因和水深又可分为两部分，一是基本上属于大陆架范围的边缘海（如喀拉海、拉普捷夫海、东西伯利亚海、楚科奇海、波弗特海、巴芬湾、哈得孙湾等）；二是北冰洋中央部分，各类浮冰广布，大部海域为&永冰区&，生物资源较贫乏。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。