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Paleoglaciation and gold placer in East Mountains region in Altai Mountains


, : Paleoglaciation and gold placer in East Mountains region in Altai Mountains. Bingchuan Dongtu = Journal of Glaciology and Cryopedology 14(1): 63-72

Altai Mts, known as Gold Mountain, lies in northern margin of Xinjiang Region. Influenced by cold climate in Quaternary, glaciers had been widely developed at this area. In the zonations of middle and high mountains, paleoglacial vestiges well remained. Studies of paleoglacial vestiges show that there were at least three glacial stages during pleistocene. The scale of glaciation culminated in the middle pleistocene. The intense paleoglaciation had not only modeled various landforms, but also created favourable conditions of gold placer formation. First, the paleoglaciation broke down geological mass containing golds and produced tremendous rock fragments. Secondly, the paleoglaciation destroyed the stability of the residuum, accelerating weathering speed to release the gold from parent rocks. Thirdly, the glacial abrasion could grind parent rocks. These processes made gold grains isolate. At the same time, a large amounts of fine gold grains were available as crystal nucleus for chemical deposition of gold. In the paleoglaciation area of Altai Mts there are many gold placers. "East Mountain Region" is a concentrated region of moraine gold placer. According to time of the formation, three types of the gold placer can be divided in this region, they are: the pre-glacial period, the glacial period and the past-glacial period.

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Other references

Bass, J.K.; Tso, J., 2002: Methods for applying small volumes of reagents. Methods, devices and apparatus are disclosed for carrying out multiple chemical reactions, such as in situ synthesis of polynucleotides, on a surface comprising an array of discrete sites. Molecules are deposited at a predetermined number of the d...

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Ruben, R.J.; Schwartz, R., 1999: Necessity versus sufficiency: The role of input in language acquisition. There is data which indicates that the critical/sensitive period(s) for language development begins in the 6th month of fetal life and may be most susceptible to impairment during the first 2 years of life. There are observations which would indic...

Taylor F.; Spalding J.B., 1989: Timing of diapause in relation to temporally variable catastrophes. This paper analyses the response of the distribution of diapause switching times in an arthropod population with respect to variation in a catastrophe, which kills nondiapause individuals. for concreteness, the catastrophe will be taken to the ons...

Karsher-Dzhurichich, V.; Rysh, I.V.; Zherber, R., 1975: Epithelial-mesenchymal interactions in the differentiation of odontoblasts and adamantoblasts. In the present study we report experiments which indicate that the adamantal epithelium (inner dental epithelium) plays a specific role in the initiation of differentiation and in the initial maintenance of odontoblasts. The preodontoblasts do not...

Fontenot, J.D.; Mariappan, S.V.S.nthana; Catasti, P.; Domenech, N.; Finn, O.J.; Gupta, G., 1994: Elongated structure of the human mucin MUC-1 tandem repeat domain. Biophysical Journal 66(2 PART 2): A28

Russell, B., 1948: Seborrboeic dermatitis with exacerbation from acriflavine. Proceedings of the Royal Society of Medicine 41(5): 303-304

McGrath, J.M.; Penno, J.W.; MacDonald, K.A.; Carter, W.A., 1998: Using nitrogen fertiliser to increase dairy farm profitability. In June 1995, 5 experimental farms were established in New Zealand to investigate the profitability of using nitrogen fertilizer (NF) to increase pasture supply and TS production. Farms were stocked with 3.34 (low) or 4.42 (high) Friesian cows/ha...

Lewandowski, S., 1969: 50 years of the Polish Red Cross in community service. Sisters of the PRC. Pielegniarka i Polozna 5: 23 Passim-23 Passim

Linden H.A., 1989: Oral implant us patent 4854873 august 8 1989. Official Gazette of the United States Patent & Trademark Office Patents 1105(2): 956-957