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Secular fluctuations in reef ecosystems during the Middle Palaeozoic to earliest Mesozoic interval : integration of metazoan and microbial reefal changes

中古生代至最早中生代期间珊瑚礁生态系统的长期波动：后生动物和微生物珊瑚礁变化的整合

基本信息

批准号：
14540440
负责人：
EZAKI Yoichi
金额：
$ 2.18万
依托单位：
Osaka City University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

1.Firstly, this research project has focused on lithofacies, depositional facies, and biofacies of Permian and Triassic transitional beds, as well as lowest Triassic (the Hindeodus parvus Zone) beds, along the southern periphery of the Yangtze Platform. Chief results are as follows :(1)The Permian/Triassic boundary is unconformable, based on detailed lithologic and biostratigraphic evidence.(2)The lowest Triassic is characterized by intercalations of thrombolites that exhibit characteristic microscopic to megascopic features. Irrespective of the region studied, variations in mesoscopic texture and macroscopic structure are common in thrombolites.(3)The initiation and cessation of thrombolite formation show a common pattern in the individual sections measured. This pattern is especially marked with respect to : 1)the nature of the Permian/Triassic stratigraphic contact ; 2)variations in texture and structure of thrombolites ; and 3)modes of occurrence of thrombolites, together with fluc … More tuations in ocean conditions after the end-Permian collapse of metazoan reef ecosystems.2.Secondly, the genesis of Lower Devonian metazoan and microbial reefs in N.S.W., Australia, was elucidated in terms of the infilling patterns of microbialites within microenvironments that were created during specific stages of stromatoporoid growth. Continuously modified cryptic spaces are utilized by a variety of microbial communities and their growth products.3.Thirdly, growth plasticity in the Rugosa, one of the most important Palaeozoic metazoan groups, was considered in relation to the regularity of asexual reproduction and the flexibility of growth modes.In order to decipher the true nature of reef ecosystems during the Middle Palaeozoic to earliest Mesozoic interval, special attention should be paid to the geobiological interrelationships between individual metazoans and microbes, as well as to their modifications through time.Some of the results noted above have been presented in academic journals and at meetings of the Geological Society of Japan, the Palaeontological Society of Japan, and others. Less

1.首先，重点研究扬子地台南缘二叠系、三叠系过渡层及下三叠系（hind odus parvus带）层的岩相、沉积相、生物相；主要结果如下：(1)根据详细的岩性和生物地层证据，二叠纪/三叠纪界线不整合。(2)下三叠纪以血栓嵌层为特征，表现出微观到宏观的特征。无论研究的区域如何，血栓中介观结构和宏观结构的变化都是常见的。(3)血栓形成的开始和停止在测量的单个切片中显示出共同的模式。这种模式在以下方面尤为明显：1)二叠纪/三叠纪地层接触的性质；2)血栓的质地和结构的变化；2)二叠纪末后生礁生态系统崩溃后海洋条件的更多变化。其次，根据叠层孔虫生长特定阶段形成的微环境中微生物的充填模式，阐明了澳大利亚ns.w地区下泥盆统后生动物和微生物礁的成因。各种微生物群落及其生长产物利用不断修改的隐空间。Rugosa是古生代后生动物中最重要的类群之一，其生长可塑性与无性繁殖的规律性和生长方式的灵活性有关。为了揭示中古生代至中生代早期珊瑚礁生态系统的真实性质，应特别注意个体后生动物与微生物之间的地球生物学相互关系，以及它们随时间的变化。上面提到的一些结果已经在学术期刊和日本地质学会、日本古生物学会等会议上发表。少

项目成果

期刊论文数量（26）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Paleoecological and phylogenetic implications of asexual reproduction in the Permian scleractiniamorph Numidiaphyllum.

二叠纪石珊瑚无性繁殖的古生态学和系统发育意义。

DOI：
发表时间：
2004
期刊：
Journal of Paleontology vol.78
影响因子：
0
作者：
Michibayashi K;Okamoto A;Masuzawa T;Kawakami T;Ikeda T;Yasuda H;Yoichi EZAKI
通讯作者：
Yoichi EZAKI

柏木健司, 山際延夫, 八尾昭, 江崎洋一, 酒折有美子, 庄司康弘: "紀伊半島西部の黒瀬川帯周辺の鳥巣式石灰岩から産するジュラ紀新世刺胞および海綿動物化石とその地質学的意義"化石. 72号. 5-16 (2002)

Kenji Kashiwagi、Nobuo Yamagiwa、Akira Yao、Yoichi Ezaki、Yumiko Sakaori、Yasuhiro Shoji：“来自纪伊半岛西部黑濑川带周围 Torisu 石灰岩的侏罗纪刺胞动物和海绵化石及其地质意义”化石第 72 号。 16 (2002)

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

Carboniferous Rugosa in the Hina Limestone, Akiyoshi Terrane, Southwest Japan : fauna endemic to the Panthalassan Ocean

日本西南部秋吉地体 Hina 石灰岩中的石炭纪 Rugosa：Panthalassan 海洋特有的动物群

DOI：
发表时间：
期刊：
Osterreichische Akademie der Wissenschaften, Schriftenreihe der Erdwissenschaftlichen Kommissionen (印刷中)
影响因子：
0
作者：
増田俊明;在田一則;池田剛;鳥海光弘;Yoichi EZAKI;池田剛;Yoichi EZAKI
通讯作者：
Yoichi EZAKI

Yoichi EZAKI: "Regular and flexible modes of division and hystero-ontogenetic growth in the Silurian rugose coral Stauria favosa"Palaeontology. (印刷中).

Yoichi EZAKI：“志留纪皱纹珊瑚Stauria favosa 的规则和灵活的分裂和子宫个体生长模式”古生物学（正在出版）。