Coral geochemical response to uplift in the aftermath of the 2005 Nias-Simeulue earthquake.

On 28 March 2005, the Indonesian islands of Nias and Simeulue experienced a powerful M 8.6 earthquake and coseismic uplift and subsidence. In areas of coastal uplift (up to ~ 2.

Microstructure and crystallographic texture data in modern giant clam shells ( and ).

This article provides novel data on the microstructure and crystallographic texture of modern giant clam shells ( and ) from the Coral Triangle region of northeast Borneo. Giant clams have two aragonitic shell layers-the inner and outer shell layer. This dataset focuses on the inner shell layer as this is well preserved and not affected by diagenetic alteration.

Toward a Cenozoic history of atmospheric CO.

The geological record encodes the relationship between climate and atmospheric carbon dioxide (CO) over long and short timescales, as well as potential drivers of evolutionary transitions. However, reconstructing CO beyond direct measurements requires the use of paleoproxies and herein lies the challenge, as proxies differ in their assumptions, degree of understanding, and even reconstructed values. In this study, we critically evaluated, categorized, and integrated available proxies to create a high-fidelity and transparently constructed atmospheric CO record spanning the past 66 million years.

Ocean Carbon Storage across the middle Miocene: a new interpretation for the Monterey Event.

The Miocene Climatic Optimum (MCO, 14-17 Ma) was ~3-4 °C warmer than present, similar to estimates for 2100. Coincident with the MCO is the Monterey positive carbon isotope (δC) excursion, with oceans more depleted in C relative to C than any time in the past 50 Myrs. The long-standing Monterey Hypothesis uses this excursion to invoke massive marine organic carbon burial and draw-down of atmospheric CO as a cause for the subsequent Miocene Climate Transition and Antarctic glaciation.

Sea ice dynamics across the Mid-Pleistocene transition in the Bering Sea.

Sea ice and associated feedback mechanisms play an important role for both long- and short-term climate change. Our ability to predict future sea ice extent, however, hinges on a greater understanding of past sea ice dynamics. Here we investigate sea ice changes in the eastern Bering Sea prior to, across, and after the Mid-Pleistocene transition (MPT).