Microfossil Paleoenvironments and Sequence Stratigraphy of Tertiary Cool-Water Carbonates, Onshore Gippsland Basin, Southeastern Australia

Abstract

Abstract: Abstract: The onshore Tertiary Gippsland Basin records the transition from terrestrial sediments to platform cool-water carbonates. This paper is the first integrated study of the carbonate sediments to combine sequence stratigraphy, biostratigraphy and paleoenvironmental analyses and then quantify Oligo-Miocene eustatic sea-level and climatic fluctuations. Data for this study are derived from continuously cored wells tied to a regional network of seismic profiling. The 16,000 km2 of the onshore Gippsland Basin contains up to 500 meters of carbonates which are assigned to the Seaspray Group and its constituent formations including the Lakes Entra..