Geochemistry of the Triassic metacarbonate rocks from the Sakar Unit, Sakar-Strandzha zone, SE Bulgaria

Tzvetomila Vladinova, Milena Georgieva
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Abstract

The geochemistry of Triassic metacarbonate rocks from the Sakar unit, Sakar-Strandzha zone recorded condition on deposition environments and primary (protoliths) composition. The metacarbonate yielded trace element distribution that conform seawater condition on shallow shelves under oxic conditions and coincide interpretation of Chatalov (1990). The REE pattern determines low to moderate contamination of terrigenous material. The significant variation of Sr can be efficient for distinguish the metacarbonates in SE Bulgaria.
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保加利亚东南部 Sakar-Strandzha 地区 Sakar 单元三叠纪偏碳酸盐岩的地球化学特征
萨卡-斯特兰德扎区萨卡单元三叠纪偏碳酸盐岩的地球化学研究记录了沉积环境条件和原生(原石)成分。元碳酸盐岩中的微量元素分布符合缺氧条件下浅海陆架的海水状况,与 Chatalov(1990 年)的解释不谋而合。REE 模式确定了土著物质的低度到中度污染。锶的显著变化可有效区分保加利亚东南部的元碳酸盐。
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