erosion phenomenon (plate tectonics process) CESA'98 Nabeul-Hammamet, Tunisia, April 1998 Thomas LEDUC September 1997

The Earth stands out in the solar system as the only planet with plate tectonics. This peculiarity is due not only to strong internal heating but also a lithosphere rheology characterized by brittle failure and localization, as a comparison with Venus clearly show. Localization in the ductile regime are manifested on Earth by ductile shear zones, which have proven difficult to explain theoretic...

EARTHQUAKE SOURCE PARAMETERS, SEISMICITY, AND TECTONICS OF THE OCEANOGRAPHER TRANSFORM FAULT

Tectonic deformation in the Central Indian Basin (CIB) is organized at two spatial scales: long-wavelength (∼ 200 km) undulations of the basement and regularly-spaced faults. The fault spacing, of order 7 to 11 km, is too short to be explained by lithospheric buckling. We show that the localization instability derived in Montési and Zuber [2002a] provides an explanation for the fault spacing in...

The Earth Materials Area is comprises the Experimental Petrology, Rock Physics, Thermochronology and Structure & Tectonics Groups. The research of these groups centres around laboratory based measurements under controlled conditions, simulating those occurring in nature, but these activities are complimented by field based observations, often in collaboration with scientists from other institut...

The geocentric realm of tectonics changed with the dawn of robotic exploration of the other bodies of the solar system. A diverse assortment of tectonic landforms has been revealed, some familiar and some with no analogues to terrestrial structural features. In this chapter, we briefly introduce some of the major topics in the book. The chapters review what is known about the tectonics on Mercu...

Mobile DNAs have had a central role in shaping our genome. More than half of our DNA is comprised of interspersed repeats resulting from replicative copy and paste events of retrotransposons. Although most are fixed, incapable of templating new copies, there are important exceptions to retrotransposon quiescence. De novo insertions cause genetic diseases and cancers, though reliably detecting t...

The middle Anisian extensional tectonics of the Neotethyan realm developed a small, isolated carbonate platform in part Balaton Highland (western Hungary), resulted deposition uranium-bearing seamount phosphorite on top drowned and produced some epigenetic fluorite veins Middle Triassic sequence. stable C-O isotope data carbonates are shifted from typical ranges, confirming epigenetic-hydrother...