G.W .Luttig.Industrial minerals and rocks:present trends in exploration,exploitation and use*in A* Cendrero et al(Eds),Planning the Use of the Earth'S Surface*1992.G.W .Luttig,Industrml minerals and rocks:presen
Although we observed the presence of some minor secondary minerals in some samples, most of the samples have relatively low loss on ignition (LOI) values of less than 3.0 wt%, and no obvious correlation is shown between the LOI and Nb/La and Th/La ratios, which suggests that the effect ...
The ancient Egyptians made one of the earliest geological attempts to discover and harvest minerals in the world, particularly gold, in the Nubian part of the ANS (in Egypt, Sudan, Eritrea, and Ethiopia) about 1150 BC. The Turin Papyrus of the Wadi Hammamat gold mines and greywacke stone ...
Sandstones: In sandstones, the content of carbonate minerals and their load-bearing role in the pore structure determine the fate of the mechanical properties. Quartz-rich sandstones undergo trivial interactions with CO2 because of the slow dissolution kinetics of silicates, resulting in slight alteratio...
Diagenetic and paleoenvironmental controls on Late Cretaceous clay minerals in the Songliao Basin,northeast China[J]. Clays and Clay Minerals,2015,63(6):469−484. DOI: 10.1346/CCMN.2015.0630605 [35] 邱楠生,胡圣标,何丽娟. 沉积盆地地热学[M]. 北京:中国石油大学出版社,2019. [36] SUN Deyou,...
Li and Ga in the source rocks from the source regions were assumed to be firstly leached out, then adsorbed mainly by clay minerals (Li-and Ga-bearing minerals) and finally transported into the paleomires of the Jungar Coalfield (Dai SF et al., 2008; Li et al., 2016; Sun YZ et al...
urbanization...not as a newly-discovered playground for uncontrolled travel and recreation...but as a precious wilderness, valuable to the world for its peace and loneliness as well as its minerals, for its inspiring beauty and strange enchantment as well as its boundless opportunities for ...
rubber sleeve, and resistance strain gauge. Mineral analysis tests are performed by X - ray apparatus (Fig.5(b)). X-ray diffraction technology is a technique for analyzing material structure by X-ray diffraction effect and widely applied in qualitative and quantitative analysis of minerals. ...
The studies on hydrothermal alteration-induced effects in surface and subsurface rocks provide useful information in the characterization and exploitation of a geothermal reservoir. Generally, these studies are based on traditional, and reliable methods like petrography (primary and secondary minerals, and ...
The samples from Luchuan batholith are reddish, and the granitic texture is medium to fine grained (0.5–3 mm; Figure 2d–f). The minerals present include plagioclase (30%–35%), alkali feldspar (25%–30%) and quartz (20%–30%). Besides, trace amounts (<1%) of magnetite, apat...