Geophysics: Crustal thickening in Himalayas and Caledonides
نویسندگان
چکیده
منابع مشابه
Crustal geophysics and seismicity in southern California
S U M M A R Y The geographical distribution of the (1981–2005) seismicity in southern California forms a ±150 km broad zone adjacent to the Pacific–North America plate boundary, ranging from depths of ∼1–∼30 km, with the bulk of the focal depths in the range of 2–12 km. The distribution of the seismicity that includes both mainshock–aftershock sequences and background events is affected by both...
متن کاملFortuna Tessera, Venus Evidence of Horizontal Convergence and Crustal Thickening
Structural and tectonic patterns mapped in Fortuna Tessera are interpreted to reflect a change in the style and intensity of deformation from east to west, beginning with simple tessera terrain at relatively low topographic elevations in the east and progressing through increasingly complex deformation patterns and higher topography to Maxwell Montes in the west. These morphologic and topograph...
متن کاملCurrent controversies in the Caledonides
This set of papers arose from a Discussion Meeting held in the Department of Geology & Applied Geology, University of Glasgow, on 9–10 September 1997. The aim of the Meeting was to review the progress which had been made in resolving some of the more controversial aspects of the pre-Silurian Caledonide geology of the British Isles and Scandinavia. It was also held to mark the retirements of two...
متن کاملContribution of mantle plumes, crustal thickening and greenstone blanketing to the 2.75–2.65 Ga global crisis
Assuming that the period 2.75–2.65 Ga corresponds to a single, but global, geodynamic event, we investigate—through numerical experiments—the mechanisms that could have led to the profound continental reworking that occurred at that time. Although the extent of the crisis at the Earth’s surface pledges in favour of the involvement of mantle plumes, our numerical experiments suggest that the the...
متن کاملTurbulence in Geophysics
Fluid in Geophysics including atmosphere and ocean, compared with the normal fluid in Hydrodynamics, its properties, such as density, pressure, temperature and velocity, all change along with altitude. That is to say, fluid in Geophysics is stratified. Therefore, the characteristics of its turbulence at different stratifications will not be the same, either. Some special characteristics, as wel...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1984
ISSN: 0028-0836,1476-4687
DOI: 10.1038/308497a0