نتایج جستجو برای: hard rocks
تعداد نتایج: 168880 فیلتر نتایج به سال:
At the beginning of 2008, I visited a watershed located in Karkinatam village in the state of Karnataka, South India. There, crops are intensively irrigated using groundwater. The water table has been depleted from 5 m-depth to 50 m-depth in a large part of the area. Now, 42 % of a total of 158 water wells in the watershed are dry. Speaking with the farmers, I have been amazed to learn that the...
Breginjski kot is among the most endangered seismic zones in Slovenia with the seismic hazard assessed to intensity IX MSK and the design ground acceleration of 0.250 g, both for 500-year return period. The most destructive was the 1976 Friuli Mw = 6.4 earthquake which had maximum intensity VIII-IX. Since the previous microzonation of the area was based solely on the basic geological map and di...
Abstract This article examines the ways that Iranian women have been situated in nation-building exercise from White Revolution of 1963 to 1979 revolution and period consolidation clerical power. Social Reproduction Theory elucidates critical facets both state control spaces counterhegemonic resistance. These include publications like Tawfiq, a political satire magazine published Pahlavi era, w...
The invasion of zebra mussels (Dreisenna polymorpha) has had a tremendous impact on lake habitats ever since their arrival in 1986 (O’Neill 1994). They live on the hard surfaces in the lake, which includes native mussels (unionids) and rocks. Within this study, we examined surface preferences of zebra mussels by looking at living and dead native mussel shells and rocks. We constructed a plot ar...
While biodiversity in deep-sea soft sediments appears to be high, little is known about diversity levels on deep-sea hard substrates. To determine the contribution of potentially abundant whale-skeleton habitats to deep-sea biodiversity, we compare the local macrofaunal species richness and composition on 3 sulfide-rich whale skeletons to assemblages from vents, seeps, and other deepsea hard su...
BACKGROUND Preservation of fossil vertebrates in volcanic rocks is extremely rare. An articulated skull (cranium and mandible) of a rhinoceros was found in a 9.2±0.1 Ma-old ignimbrite of Cappadocia, Central Turkey. The unusual aspect of the preserved hard tissues of the skull (rough bone surface and brittle dentine) allows suspecting a peri-mortem exposure to a heating source. METHODOLOGY/PRI...
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