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【英文篇名】 |
PALEOECOLOGY OF CALCISPONGES (INOZOANS,
THALAMID SPONGES, SCLEROSPONGES) |
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【作者】 |
吴亚生;
范嘉松; |
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【英文作者】 |
WU Ya Sheng and FAN Jia Song
(Institute of Geology;
Chinese Academy of Sciences;
Beijing 100029); |
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【作者单位】 |
中国科学院地质研究所; |
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【刊名】 |
古生物学报 ,
Acta Palaeontologica Sinica,
编辑部邮箱
2000年 04期
期刊荣誉:中文核心期刊要目总览 ASPT来源刊 CJFD收录刊 |
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【关键词】 |
钙质海绵;
纤维海绵;
硬海绵;
房室海绵;
古生态;
造礁生物; |
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【英文关键词】 |
calcisponge;
paleoecology;
reef;
inozoan;
thalamid sponge;
sclerospongex; |
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【摘要】 |
古生代生物礁中钙质海绵 (纤维海绵、房室海绵、硬海绵
)的生态位在中三叠世以后被生态竞争能力更强的六射珊瑚所占据。在古生代和中三叠世的钙质海绵礁上
,0— 10m深度内钙质海绵很发育。由于与钙藻共生
,典型的造礁钙质海绵生活在透光带以内
,并且在其上部更丰富。钙质海绵礁也会生长到破浪带内并受风浪的破坏而形成倒骨岩和骨屑岩。对古生代的钙质海绵礁而言
,倒骨岩和骨屑岩形成于 0— 3m水深范围内 ,亮晶骨架岩形成于
3— 10m深度范围内 ,灰泥骨架岩形成于 10— 2
0m的水深 ,障积岩形成于 2 0— 30m的水深
,潜障积岩形成于30—
40m的水深。钙质海绵的生长形态与水深的关系与六射珊瑚与水深的关系一样
:细枝状的钙质海绵生长在最浅的水中 (相当于礁生长带的上部 )
,在稍深的水中 (相当于礁生长带的中部和下部
)各种形态的海绵都会出现
,在更深的水中可以出现特别大的、锥状的海绵 |
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【英文摘要】 |
In Paleozoic calcisponge reefs
calcisponges (inozoans,
thalamids, sclerosponges)
occurred not only at more than
10 m but also at 0—10m water
depth. In Permian and Middle and
early Late Triassic (Carnian)
calcisponge reefs, calcisponges
were dominant reef builders,
being the most abundant at 0—10
m deep part of the reefs. In
post Carnian reefs, the 0—10m
deep parts were occupied by
scleractinian corals, which won
calcisponges in the ecological
competition, that may accounts
for the extinction of the domin... |
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【基金】 |
国家自然科学基金!(No .D840 39和No .4910 2
0 71);; 中国科学院重大项目!(KZ95 1 B1 40
9)资助 |
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【DOI】 |
cnki:ISSN:0001-6616.0.2000-04-009 |
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