Off-Reef Salina Deposition (Silurian), Southern Michigan Basin Implications For Reef Genesis
Off-Reef Salina Deposition (Silurian), Southern Michigan Basin Implications For Reef Genesis
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南密歇根盆地礁外盐沼沉积（志留纪）对礁石成因的影响
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
J. Sarg
中科院分区：
文献类型：
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作者：
J. Sarg
密歇根盆地南部Niagara-Lower Salina层序的盆地礁外碳酸盐岩和蒸发岩沉积在水下中盐至超盐环境中，横向邻近生长的尖峰礁。盆地碳酸盐岩反映了盆地在沉积过程中的进步限制，包括三种岩相：1）下台地海百合状杂砂岩相，其上发育盆地斜坡尖礁，并被两个中盐相覆盖; 2）主要的南极洲泥岩相;和近礁的peloidrrod”杂砂岩相。三种硬石膏岩相与基底碳酸盐相互层，包括：
: The basinal off-reef carbonate and evaporíte rocks of the Niagara-Lower Salina sequence in the southern Michigan Basin were deposited in a subaqueous mesosaline to hypersaline environment laterally adjacent to growing pinnacle reefs. The basinal carbonate rocks reflect a progressive restriction of the basin during deposition and include three lithofacies: 1) a lower platform crínoid wackestone facies on which developed the basin slope pinnacle reefs, and which is overlain by two mesosaline facies; 2) a dominant anhydritic mudstone facies; and a reef-proximal peloidrrod" packstone facies. Three anhydrite lithofacies occur interbedded with the basínal carbonate facies and include: