Project Summary Long-term changes in the Earth's climate caused global sea level to rise or fall, as polar ice melted or froze. These changes in sea level are recorded in the sedimentary structures at continental margins. Much of our knowledge on the history of the Earth's climate comes from studying seismic reflection profiles of these structures. Interpretation of climate signals in margin sediments is complicated by local tectonic forces that cause parts of the margins to rise or subside, independent of climactic changes. This research cruise is designed to help develop the tools and understanding that will enable researchers to separate the climatic and tectonic effects seen in margin sediments. |