Mid-triassic shallow marine evaporites and a genetic model for evaporation during regional compression (Lower Yangtze Basin, Anhui, China)

Hubert Breitkreuz, Frank Mattern, Werner Schneider

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Abstract

Three lines of evidence show that the shallow marine carbonates and sulfates of the mid-Triassic Dongmaanshan Formation of the Lower Yangtze Basin, Anhui, China, were deposited during regional compression. Deposition took place at the onset of collision on the shelf of the Yangtze Block, which was underriding the North China Block. The geological circumstances of this very specific situation are outlined, and a genetic model ("colliding shelf model") is proposed. The model predicts a low probability of rock salt formation. However, halite was precipitated west of the study area.

Original languageEnglish
Pages (from-to)211-222
Number of pages12
JournalCarbonates and Evaporites
Volume9
Issue number2
DOIs
Publication statusPublished - Sep 1994

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ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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