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2 edition of Geochemical orientation studies of gold in drainage sediments on the Arabian Shield found in the catalog.

Geochemical orientation studies of gold in drainage sediments on the Arabian Shield

K. F. Gaukroger

Geochemical orientation studies of gold in drainage sediments on the Arabian Shield

by K. F. Gaukroger

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  • 29 Currently reading

Published by Riofinex Ltd. for the Ministry of Petroleum and Mineral Resources, Deputy Ministry for Mineral Resources in Jiddah .
Written in English


Edition Notes

Statementcompiled by K.F. Gaukrogerfrom notes prepared by R.V.Sale.
SeriesOpen-file report -- RF-OF-05-26
ContributionsSale, R. V.
ID Numbers
Open LibraryOL13914410M

Tigris and Euphrates Rivers along the Main Drain course from north Baghdad to Basrah to evaluate the geochemical, physical characteristics and the probability contamination of these samples. The study area is covered by Quaternary sediments of complex alternation of sand, silt and clay. Significant variation in the textural content of the.   Geochemical characteristics of shallow groundwaters and core sediments are studied to better understand the sources and transportation process responsible for As and Mn enrichment in Singair Upazila of Manikgonj District in Bangladesh. Results demonstrate that the groundwater is mostly of Ca-HCO 3 and Ca-Mg-HCO 3 types. Concentrations of As in Cited by: 4.

J. A. McDivitt, Kontak, D. J., Lafrance, B., and Robichaud, L., “ Contrasting fluid chemistries, alteration characteristics, and metamorphic timing relationships recorded in hybridized orebodies of the Missanabie-Renabie gold district, Archean Wawa Subprovince, Ontario, Canada ”, Economic Geology and the Bulletin of the Society of Economic GeologistsEconomic Geology and the Bulletin of the. Eluvial-alluvial gold from the gold-copper occurrence Borov Dol (R. of Macedonia). Part I: Geochemistry of stream sediments gold, stream sediments, geochemical associations, cluster analysis, Borov Dol, R. of Macedonia. 67 the stream sediments for geochemical and mineralog-ical studies. The former (2 samples) were collected.

The present study began several years ago following some recent mapping of the dolomite distribution within the Arab-D in Ghawar and Abqaiq fields (Figures 3 and 4).This mapping (reported most recently in Cantrell et al., ) revealed that dolomites were not distributed randomly throughout the reservoir, but that several parallel linear trends of high dolomite content occurred across most of Cited by: The Abu Ghusun manganese deposit is subjected to mineralogical and geochemical studies in order to elucidate its petrogenesis. Manganese occurs as sheets, lenses, encrustation and fracture filling within clastic sediments of the Abu Ghusun Formation of Oligocene age. The mineralogical, and geochemical data confirmed by microscopic.


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Geochemical orientation studies of gold in drainage sediments on the Arabian Shield by K. F. Gaukroger Download PDF EPUB FB2

Orientation studies were carried out by the BRGM mission in Saudi Arabia between – to investigate the dispersion of gold in soils and wadi sediments and to define the optimum sample medium around eight prospects in the central Arabian by: Conclusions This intensive study on a short ( m) reach of a small, upland stream has addressed the local scale dis- tribution of gold in channel-bed sediments, with ref- erence to the efficacy of geochemical surveying.

Data were derived from 30 freeze Cited by: 6. Geochemical record of Holocene to Recent sedimentation on the Western Indus continental shelf, Arabian Sea David R.

Limmer School of Geosciences, University of Aberdeen, Meston Building, Aberdeen AB24 3UE, UK (@) Philipp Böning ICBM Microbiogeochemistry, University of Oldenburg, D Oldenburg, GermanyCited by:   The Iron Quadrangle has been the scenery of the most important gold production in Brazil.

It is estimated that during the three centuries of gold mining in the Iron Quadrangle, at leastt of arsenic was discharged into the drainage system. This study presents geochemical data for the three river basins in the region, with focus on surface water and stream sediment by: Geochemical characteristics of deep-sea sediments from the Arabian Sea: A high-resolution study July Deep Sea Research Part II Topical Studies in Oceanography 47(14) An ephemeral stream sediment geochemical survey was carried out in the arid and mountainous Late Precambrian area of southern Israel.

Based on an orientation survey, the − mm sediment fraction (− mesh) was chosen for geochemical analyses. As in other studies, it was found that secondary dispersion trains are of limited by: 9.

The lithology and petrography of the zon area under study showed an alteration zone with high concentration of secondary and oxide minerals. These were indications of the mineralization ore minerals which were documented by chemical analysis for gold and the pathfinders for the geochemical association of the Size: 4MB.

The present article deals with applying geochemical, mineralogical and radiometric characteristics of stream sediments at Wadi El-Baroud study concerned with the elemental concentration such as Cu, Zn, Pb, Ni, Co and V as well as rare metals and identifying geochemical anomalies associated with mineralization in the area.

Well sediments: a medium for geochemical prospecting, an example from the Nisa region. Portugal. In: A.W. Rose and P.M. Tau- fen I Editors). Geochemical Exploration. Geochem. Expior., 4!:. 5 I- Tile potential of well sediments for geochemical prospection purposes is assessed in the Nisa region Portugal).

Exploration geochemical and mineralogical studies by the U.S. Geological Survey at the Pebble porphyry Cu-Au-Mo deposit were designed to (1) determine whether.

Orientation surveys conducted on the Arabian shield show that except in the more mountainous areas, effective geochemical exploration is dependent on elimination of aeolian contamination by screening. It is the coarse-grained fraction which must be kept for analysis: the precise fraction depends on local by: 9.

The Marahiq area represents a portion of the Pan-African belt from the Neoproterozoic age in south Egypt and includes metamorphosed ultramafic rocks, metavolcanic rocks, and granodiorite pluton.

The area is characterized by the ancient abandoned Au mine and the recent active talc mines. The present paper provides a preliminary assessment of stream sediments for gold (Au) placer and Cited by: 1.

STREAM SEDIMENT GEOCHEMICAL EXPLORATION FOR GOLD 34 transport (Nichols et al). Furthermore, slight changes in the slope of a stream bed, coupled with the particle scarcity effects on sample representativity may lead to the inhomogeneous Au distribution.

Therefore, BLEG stream sediment sampling is considered as an. Abundance of feldspars, especially plagioclase indicates rapid deposition of sediments from nearby source rocks. Using the geochemical classification diagram, the Jurassic sandstones are classified mainly as Fe-sand, quartzarenite, and sublitharenite, which is also supported by the petrographic by: As rocks weather and their content of sulfide minerals oxidize, Ag, As, Mo and W are likely to be carried into drainage systems in solution as well as included in clastic fragments.

Therefore, in a geochemical exploration using drainage sediments, these elements can assume the role of pathfinder elements for potentially economic by: In sediments where the Au is fine grained and free, previous studies have indicated similar spatial geochemical patterns between BLEG and either aqua regia or total Au contents of the fine.

They generally consist of alternating belts of greenschist-grade volcanic and sedimentary rocks, and high-grade gneisses. Several geochemical studies of the volcanic belts in the Arabian Shield have led to the recognition of their island-arc affinities (Greenwood et al., ; Roobol et al., ; Reischmann et al., ).

The ICP-MS data Cited by:   Geochemical and foraminiferal analyses of the bottom sediments of Dammam coast, Arabian Gulf, Saudi Arabia. Khaled AlKahtany 1,Cited by: 8. Geochemical and rock-magnetic investigations were carried out on a sediment core collected from the SE Arabian Sea at m depth in oxygenated waters below the present-day oxygen minimum zone.

The top cm of the core sediments represent the last 35 kaBP. The 18O values of Globigerinoides ruber are heaviest during the Last Glacial Maximum (LGM) and appear unaffected by Cited by: As part of a Geoscience BC funded study, a geochemical orientation survey was carried out over the blind Central Zone Cu-Au porphyry deposit at Serengeti‟s Kwanika project in north-central BC.

The objective of this study was to test various widely used partial and selective extractions in a challenging cover environment to determine which.

the important considerations in stream sediment geochemical studies (e.g. Cullers et al., ; Cullers, ) since stream sediments represent the rock materials derived from within a drainage basin. It is therefore necessary to study the behavior of these geochemical indicators in modern sediments with good provenance controlFile Size: KB.The geochemical characteristics of surface water and stream sediments in Asprolakkas drainage basin, an area of Tertiary mineralization within amphibolite, located at NE Chalkidiki peninsula, Greece, were investigated in order to establish the geochemical baseline .A geochemical survey was carried out on the dry stream sediments of Wadi Haimur area, South Eastern Desert of Egypt.

These sediments are derived mainly from basement rocks of Late-Proterozoic age. Sixty-five stream sediment samples were analyzed for 19 chemical elements in bulk and four other different fractions after hot extraction with aqua by: 2.