Late Triassic Radiolaria from the Kodiang Limestone, northwest Peninsular Malaysia

Journal of Southeast Asian earth sciences Pub Date : 1995-07-01 DOI:10.1016/0743-9547(95)00025-9

Basir Jasin, Che Aziz Ali, Kamal Roslan Mohamed

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引用次数: 8

Abstract

Two different cherty packstone-wackestone facies are exposed at an abandoned limestone quarry at Bukit Kodiang, Kedah. Chert occurs as discontinuous layers and nodules in the cherty packstone-wackestone. The thickness of individual chert layers varies from 2 to 10 cm. The facies exhibit slump folds. Eighteen species of Radiolaria were identified—Capnuchosphaera triassica De Wever, Triassocampe sulovensis Kozur and Mock, Tetraporobrachia asymmetrica Kozur and Mostler, Xenorum flexum Blome, Canoptum laxum Blome, Palaeosaturnalis triassicus Kozur and Mostler, Canoptum cf. farawayensis Blome, Pseudostylosphaera cf. spinulosa Nakaseko and Nishimura, Hagiastrum cf. augustum Pessagno, Perispongidium sp., Capnuchosphaera sp., Sarla sp., Kahlerosphaera sp., Canoptum sp., Latium sp., Paronaella sp., Sontonaella sp., and Spongostylus sp. The assemblage indicates that the age of the chert bearing strata ranges from late Carnian to middle Norian, Late Traissic.

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马来西亚半岛西北部科当石灰岩的晚三叠世放射虫

两种不同的燧石-泥粒石-粒石相暴露在吉打武吉科当一个废弃的石灰岩采石场。燧石以不连续层和结核的形式出现在燧石-泥粒石-杂砂岩中。个别燧石层的厚度从2到10厘米不等。岩相表现出坍落褶皱。鉴定出18种放射虫，分别为：三氏帽磷藻（Capnucphosphaera triassica De Wever）、苏洛文氏三囊藻（Triassocampe sulovensis Kozur and Mock）、不对称四孔臂藻（Tetraporobrachia asymmetrica Kozur）和Mostler、弯曲异足虫（Xenorum flexum Blome）、松弛无足虫（Canoptum laxum Blom）、三氏古蛛（Palaeosaturnalis triassicus Kozur&Mostler，Perispongidium sp.、Capnucphosphaera sp.、Sarla sp.、Kahlerosphaera sp、Canoptum sp.、Latium sp.、Paronaella sp.、Sontonaella sp.和Spongostylus sp。

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Journal of Southeast Asian earth sciences

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