28 documents found, page 1 of 3

Early oldowan technology thrived during pliocene environmental change in the Tu...

Approximately 2.75 million years ago, the Turkana Basin in Kenya experienced environmental changes, including increased aridity and environmental variability. Namorotukunan is a newly discovered archaeological site which provides a window into hominin behavioral adaptations. This site lies within the upper Tulu Bor and lower Burgi members of the Koobi Fora Formation (Marsabit District, Kenya), presently a poorl...

Sea-level and monsoonal control on the Maldives carbonate platform (Indian Ocea...

The Maldives Archipelago (Indian Ocean), composed of two rows of atolls that enclose an inner sea, offers an excellent study site to explore the forcings of carbonate production at platforms. Glacial-interglacial sea-level changes have been claimed to be the main factor controlling the carbonate platform factories; however, climatic factors may also have an impact. In this work we used geochemical compositional...

Anomalous widespread arid events in Asia over the past 550,000 years

Records of element ratios obtained from the Maldives Inner Sea sediments provide a detailed view on how the Indian Monsoon System has varied at high-resolution time scales. Here, we present records from International Ocean Discovery Program (IODP) Site U1471 based on a refined chronology through the past 550,000 years. The record's high resolution and a proper approach to set the chronology allowed us to recons...

Benthic megafauna habitats, community structure and environmental drivers at Ri...

Discovery of enigmatic toroidal carbonate concretions on the Rio Grande Rise (S...

Evidence for methane seepage in South Atlantic from the occurrence of authigeni...

Geochemical insights into formation of enigmatic ironstones from Rio Grande ris...

Petrogenesis of alkaline volcanic rocks from the western Rio Grande Rise, south...

Southern Ocean carbonate dissolution paced by Antarctic Ice-Sheet expansion in ...

Semi-quantitative analysis of major elements and minerals: clues from a late pl...