نتایج جستجو برای: piedmont plains and area
تعداد نتایج: 16876989 فیلتر نتایج به سال:
Introduction: Observations made by the Opportunity rover during its traverse south from Eagle crater show that the hematite bearing plains are an aeolian lag deposit consisting of hematite spherules and basal-tic sand, along with a nanophase iron oxide bearing dust component, that has been worked into ripples [1,2,3]. The hematite spherules, which have weathered out of the sulfate rich outcrop ...
after the soviet union dissolution, a chaotic period was begun in the russia. russia lost its glory and felt disgrace. the first group of elites came to power under yeltsin; they tried to re-define russia’s identity as a european country and build a foreign policy on this baseline. therefore russia tried to become closer with the west especially with the u.s. according to their view the sovie...
Although the origin and composition of many units are obscure or controversial, their interpretations are based on objective descriptions of morphologic characteristics visible on Viking photomosaics and images. LOWLAND TERRAIN MATERIALS Consist of all plains-forming units between the highland-lowland boundary scarp and the north edge of the map area, exclusive of materials of the western volca...
MESSENGER observations from Mercury orbit reveal that a large contiguous expanse of smooth plains covers much of Mercury's high northern latitudes and occupies more than 6% of the planet's surface area. These plains are smooth, embay other landforms, are distinct in color, show several flow features, and partially or completely bury impact craters, the sizes of which indicate plains thicknesses...
بررسی ارزش غذایی تاغ و عمل آوری آن با سود و آهک در مراحل مختلف رشدبا استفاده از روش کیسه های نایلونی
abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...
Aims & Backgrounds: Considering the fact that a large part of our country is in arid and semi-arid regions and every year wind erosion and dust storms cause significant damages to the country's bio-economic resources, it is necessary to study this phenomenon. This study investigated the erosion rate of geomorphological facies of Gonabad city in relation to wind erosion. Methodology: The wind er...
Abstract The negative balance of water reserves and reduce the size of static storage aquifers including the effects of the drought phenomenon is repeated on the status of surface and groundwater resources in Iran including Khuzestan province has had an impact. In this study, using fuzzy and ArcGIS version also better understand the effects created in the statistical period on the aquifer Gotv...
Study of Landsat imagery prompted Cannon (1) to suggest that Sithylemenkat Lake in central Alaska occupies a meteorite impact crater. In support of his thesis, he cites physiographic, structural, geochemical, and aeromagnetic evidence from various published sources. We believe, on the basis of our previous work in the area (2-4), that Cannon has largely misinterpreted these published data, whic...
The purpose of this paper is to present the emissions status of multiple rural areas from the perspective of a field survey and make up for the defects of the traditional emission cognition of single type of area. The basic data in the lower reaches of the Weihe River of Northwest China were collected through household questionnaire surveys, and emissions from rural household energy consumption...
an earthquake with magnitude ms = 6.5 on the richter scale occurred in december 26th, 2003 in bam region in southeastern part of iran. this study investigates the chemical variations of the groundwater resources in the effected region. for this purpose, 30 wells were selected and chemical compounds, in terms of cations (ca+2, mg+2, na+, k+); anions (hco3, so4, cl, no2), as well as ec, tds and p...
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