DOLOMITIZATION, TIME BOUNDARIES AND UNCONFORMITIES - EXAMPLES FROM THE DOLOSTONE OF THE TAURUS MESOZOIC SEQUENCE, SOUTH-CENTRAL TURKEY

VAROL B., MAGARITZ M.

SEDIMENTARY GEOLOGY, vol.76, no.3-4, pp.117-133, 1992 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 76 Issue: 3-4
  • Publication Date: 1992
  • Doi Number: 10.1016/0037-0738(92)90079-7
  • Journal Name: SEDIMENTARY GEOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.117-133
  • Ankara University Affiliated: No

Abstract

A Mesozoic carbonate unit in the Taurus platform consists of thick dolostone sequences with both massive, thick beds and thinner beds intercalated with limestone. Dolomite preferentially replaced micrite in the original carbonate. In an initial phase of dolomitization, dolomicrite formed, which later as through dissolution and recrystallization resulted in clear dolomite crystals and dolosparites. An additional type of dolomite is dolosparite filling voids. These dolomite crystals represent either replacement of precursor calcite cement or growth into void space. Dissolution of late, coarsely crystalline dolosparite, precipitation of saddle crystals, local dedolomitization, and some late calcite cement in the voids, all indicate short-term atmospheric exposure of the sequence during or after the main dolomitization event.