Abstract
Sphinctozoa skeletons were the main builders in microbial-sponge boundstones and cementstones. Syndepositional lithification of associated automicrite and marine phreatic cementation by radial fibrous and radiaxial calcite favored stabilization and growth of skeleton-cement reefs across a central reef area (close to a platform margin), but without forming a wave-resistant reef framework. Storm-influenced destruction of the buildups and subsequent reworking by waves and currents produced bioclastic-intraclastic grainstones.
Publisher
Bulgarian Geological Society
Reference8 articles.
1. Belivanova, V. 1996. Sedimentology of the Trun Formation north of the town of Trun. – Rev. Bulg. Geol. Soc., 57, 19–24 (in Bulgarian with English abstract).
2. Boni, M., A. Iannace, M. Torre, V. Zamparelli. 1994. The Ladinian–Carnian reef facies of Monte Caramolo (Calabria, Southern Italy). – Facies, 30, 101–117.
3. Čatalov, G. 1991. Triassic in Bulgaria – a review. – Bull. Techn. Univ. Istanbul, 44, 103–135.
4. Flügel, E. 2002. Triassic reef patterns. – In: Flügel, E., W. Kiessling, J. Golonka (Eds.). Phanerozoic Reef Patterns. Society for Sedimentary Geology (SEPM), 391–463.
5. Reitner, J., F. Neuweiler. 1995. Mud mounds: a polygenetic spectrum of finegrained carbonate buildups. – Facies, 32, 1–69.