نتایج جستجو برای: geochemical unit
تعداد نتایج: 406665 فیلتر نتایج به سال:
Identification of mineralization features and deep geochemical anomalies using a new FT-PCA approach
The analysis of geochemical data in frequency domain, as indicated in this research study, can provide new exploratory informationthat may not be exposed in spatial domain. To identify deep geochemical anomalies, sulfide zone and geochemical noises in Dalli Cu–Au porphyry deposit, a new approach based on coupling Fourier transform (FT) and principal component analysis (PCA) has beenused. The re...
The Mesoproterozoic Xiamaling Formation (∼1.4 Ga) is considered to be a set of promising strata for shale oil and gas exploration production in the Yanliao Basin, North China Craton. This study aimed investigate organic matter accumulation mechanism, hydrocarbon generation expulsion characteristics Formation, using various methods, including scanning electron microscopy, rock-eval pyrolysis, el...
The research area is Bualemo Village, Kwandang District, North Gorontalo Regency. With coordinates 0˚ 47' 10" - 48' 40" Latitude and 122˚ 55' 0" 57' 5" East Longitude with an of about 10 km2. This study aims to determine the petrogenesis andesite rocks tectonic setting in area. method used this a mapping geological conditions site X-ray fluorescence (XRF) geochemical analysis chemical content r...
NETPATH-WIN is an interactive user version of NETPATH, an inverse geochemical modeling code used to find mass-balance reaction models that are consistent with the observed chemical and isotopic composition of waters from aquatic systems. NETPATH-WIN was constructed to migrate NETPATH applications into the Microsoft WINDOWS® environment. The new version facilitates model utilization by eliminati...
Detecting deep mineralization from partial element concentrations in surface and near-surface samples requires detecting the signature of one geochemical process against a background that arises from many other geochemical processes. Since the last glaciation of the Canadian Shield, it is believed that only H+ can have diffused through substantial overburden, and hence that the only available s...
چکیده ندارد.
Naturally occurring arsenic contamination is common in ground water in the upper Midwest. Arsenic is most likely to be present in glacial drift and shallow bedrock wells that lie within the footprint of northwest provenance Late Wisconsinan glacial drift. Elevated arsenic is more common in domestic wells and in monitoring wells than it is in public water system wells. Arsenic contamination is a...
The age and origin of the quartz-amphibole-pyroxene (qap) gneiss from the island of Akilia, southern West Greenland, have been the subject of intense debate since the light C-isotope composition of graphite inclusions in apatite was interpreted to indicate the presence of Earth's earliest biological activity. Although this claim for biogenic relicts has been vigorously challenged, the possibili...
The hydrological cycle of Lake Ipê and the principal parameters that could affect its abiotic parameters and its metal (Fe, Mn, and Cd) concentrations were investigated. A detailed study of seasonal variations using Principal Components Analysis (PCA) for the most relevant metals (Fe, Mn and Cd) was performed, assisted by the MINTEQA2 geochemical equilibrium program using 15 water abiotic param...
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