Notes on Cone-In-Cone Structures from Kaohsiung, Southwestern Taiwan

This study presents a rock sample composed of thin layers of calcite cone-in-cone structures and muddy silts. The sample was collected from debris-flow deposits covering the bed of the Chishan River at Hunghuatzu, Namasia District, Kaohsiung City, southwestern Taiwan. It is considered to possibly be...

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Veröffentlicht in:Collection and Research 2012-04 (25), p.9-16
Hauptverfasser: 王士偉(Shih-Wei Wang), 李安勝(An-Sheng Lee)
Format: Artikel
Sprache:eng
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Zusammenfassung:This study presents a rock sample composed of thin layers of calcite cone-in-cone structures and muddy silts. The sample was collected from debris-flow deposits covering the bed of the Chishan River at Hunghuatzu, Namasia District, Kaohsiung City, southwestern Taiwan. It is considered to possibly be a chaotic block which eroded from upstream Miocene formations. Diagnostic features of the cone-in-cone structures, such as stacks of concentric circular cones, clay film parting between the cones, fine to distinct radiating striations, and parallel annular corrugations on the cone surface, are all presented in the cone-in-cone layer of this specimen. This is the first report of cone-in-cone structures in Taiwan.
ISSN:1726-2038
DOI:10.6693/CAR.2012.25.2