Naslov
Environmental reconstruction of a Langhian patch reef (East Kalimantan, Indonesia)

Autori
Novak, V. ; Santodomingo, N. ; Roesler, A. ; Di Martino, E. ; Braga, J. C. ; Taylor, P. D. ; Johnson, K. ; Renema, W.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Lyell Meeting Abstract Book / - , 2012, 13-13

Skup
Lyell Meeting 2012 'Big Palaeontology'

Mjesto i datum
London, Ujedinjeno Kraljevstvo, 29.03.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Recenziran

Ključne riječi
Environmental reconstruction, larger benthic foraminifera, corals, bryozoan, coralline algae, Miocene

Sažetak
The development of isolated patch reefs within siliciclastic sediments epitomise the Miocene carbonate deposits of East Kalimantan, Indonesia. A team of Marie Curie Early Stage Researchers and Principal Investigators from the THROUGHFLOW project collaborated in reconstructing a mixed system, delta-front patch-reef. Based on a multi-taxon analysis of the fossil assemblages, we described the palaeoenvironment and biodiversity of this well-preserved Langhian patch reef. The studied outcrop is located near Bontang, East Kalimantan, at the NE margin of the Kutai Basin, sedimentary complex dominated by siliciclastic deposition. Fieldwork was undertaken in two steps: 1) characterisation of lithology and geometry of reef deposits, and 2) sampling of fossil assemblages. Lithological units were identified by detailed logging of eight transects along the outcrop in order to detect lateral changes. Microfacies analyses of thin sections included carbonate lithological classification and skeletal component logging, on which relative abundances of LBF, algae, and corals were estimated for each sample, allowing broad palaeoenvironmental separation. The resulting biodiversity data was analysed jointly with the sedimentological information.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA