Few Palaeogene and Neogene sediment cores from the Antarctic continental margin have been dated with sufficient precision to enable establishment of direct linkages between glacial events on the Antarctic continent and marked events in deep-sea N18O records. As a result, much of our knowledge of the gradual, but stepwise, shift from ‘greenhouse’ climates of the Cretaceous to the ‘ice-house’ cli...

Sedimentary rocks record the ancient climate of Mars through changes between subaqueous and eolian depositional environments, recognized by their stratal geometries suites sedimentary structures. Orbiter- rover-image-based geologic mapping show a dynamic evolution 5-km-thick sequence exposed along flanks Aeolis Mons (informally, Mt. Sharp) in Gale crater, Mars, deposition strata followed exhuma...

In 2002 high-resolution sidescan sonar images of a mound area at the SW Rockall Trough Margin were recorded with the TOBI deep towed sidescan sonar. Processed TOBI images with a pixel resolution of 6 metres provide a unique overview of the carbonate mound distribution and related sedimentary features around the mounds. Three morphologically distinct areas can be recognised on the TOBI mosaic. I...

The geological record of the eastern Sierras Pampeanas province, in modern Andean broken foreland Argentina can be divided into four main events: (1) Proterozoic to early Paleozoic collisional tectonics, (2) middle-late anorogenic magmatism, relief generation and glacial paleovalley formation followed by (3) a classical filling Permian two proximal alluvial sedimentation associated with Cretace...

—Topographically low exposures of Upper Triassic Chinle Group strata near St. Johns, Arizona, overlie the Middle Triassic Moenkopi Formation and can be assigned to four formation-rank units. These are, in ascending order, the Zuni Mountains (= “mottled strata”), Shinarump, Bluewater Creek (= “Mesa Redondo”), and Petrified Forest formations. Petrified Forest Formation strata in the vicinity of S...