Organic geochemical characteristics and depositional environment of the Tertiary Tanjong Formation coals in the Pinangah area, onshore Sabah, Malaysia

Geochemistry of the Cretaceous coals from Lamja Formation, Yola Sub-basin, Northern Benue Trough, NE Nigeria: Implications for paleoenvironment, paleoclimate and tectonic setting

“…Oleanane is a strong indicator of terrestrial angiosperm plant as initially reported by Ekweozor and Telnaes (1990). The presence of oleanane suggests probable marine-influence as indicated by earlier work of Murray et al (1997) and recently reported for Tertiary coals (Alias et al, 2012). The influence of marine condition is consistent with the sulfur content (>0.5 wt.%) and the presence of pyrite that were identified within the coals (Figs.…”

“…Peak identifications of the m/z 191 and m/z 217 fragmentograms were made on the basis of their retention times and comparison of mass spectra with previously published works (e.g. Philp, 1985;Waples and Machihara, 1991;Abdullah, 1999;Alias et al, 2012). The identified peaks are listed in Appendices A and B.…”

Tidal dynamics and mangrove carbon sequestration during the Oligo–Miocene in the South China Sea

“…and Kapilit (Ka.) formations, onshore Central Sabah Basin 67 68 ; (10) Naintupo (N.) Tabul (T.) and Santul (S.) formations (Tarakan Basin), all of which contain interpreted tidal sand bars/ridges 63 ; (11) Pulau Balang (Pu.) Formation, Kutai Basin 69 ; and (12) Sandakan Formation, Sandakan Basin 70 .…”

A regional review and new insights into SE Asian Cenozoic coal-bearing sediments: Why does Indonesia have such extensive coal deposits?

“…Peat formed in coastal, fluvial, lacustrine and deltaic settings (Alias et al, 2012;Anonymous, 1987Anonymous, , 1996Flores, 2014;Flores et al, 2015;Gibling and Ratanasthien, 1980;Hutchison, 1996;Koesoemadinata et al, 1978;Nielsen et al, 2007;Petersen and Ratanasthien, 2011;Polachan et al, 1991;Ratanasthien, 1989Ratanasthien, , 1994Sia et al, 2014). Modern peats (ombrotrophic and rheotrophic) are still forming (Fig.…”