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1. The petrography and mineral chemistry of 6 unequilibrated ordinary chondrites collected from the Grove Mountains, Antarctica, were studied.

2. Petrography and mineral chemistry of 100 meteorites collected from the Grove Mountains, Antarctica, were studied and their chemical-petrographic types were assigned.

3. In fluid-inclusion petrography, the introduction of the concept of 'fluid-inclusion assemblage' has been a major advance.

4. Coal petrography of main minable coal beds in Shendong mining area and coal pyrogenation in Shenmu are researched in detail, the hydrocarbon potential of different coal components is discussed.

5. In this paper the author discusses the petrography feature of the rock in the scale ductile shear zone and the characteristics of the shear belt.

6. Based on petrography, major and trace element data, the tholeiitic basalts could be classified into two major geochemical types: low Ti (LT) and high Ti (HT) basalts.

7. The (examination) of the petrography shows that the volcanic terrains in Tengchong are typical of the basalt-(andesite)-(dacite) arc volcanic rock associations of the calc-alkaline series.

8. Petrography, the branch of geology that describes and classifies rocks with the use of then sections and microscopes.

9. The paper discusses the coal petrography and proximate analysis of the vertical systematical samples of the Honso and Joso coal beds in the Miike coal field.

10. The Sanxia granite aggregates were determined in their petrography structures and mineral compositions; the quintuplets of quartz of the aggregates were tested.

11. Ceramics Two general approaches have been much used: thin-section petrography and chemical analysis of the body fabric or composition.

12. It is also necessary specifically to select veined material for study, hitherto not a regular practise in traditional carbonate petrography.

13. Metasomatism of the granitic rocks in Zhejiang Province, China is investigated by petrography.

14. The basic idea and test of Baosteel method of coal blend with petrography was obtained and made after reviewing domestic and abroad methods of coal blend with petrography.

15. Through analyzing the combustion process of pulverized coal(PC) and source of unburned PC, the combustion characteristics of PC is studied by means of coal petrography.

16. According to"single factor analysis and comprehensive mapping method", the petrography and lithofacies paleogeography of every formation of Qinglong Group has been studied.

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17. Later in the paper, a correlation between the main coal-seams in this province is made, in combination with the traditional method of the key bed, coal petrography and palaeontology.

18. To make sure the petroleum migrating direction and pool-forming model in the Weixinan sag, 4 wells were chosen to do research on fluid inclusions and petrography.

19. The fluid inclusions in several types of rocks in the Dabie UHP zone were systematically investigated in the aspects of petrography and temperature of phase change.

20. The CaO content in ash is related to magnetic petrographic characteristics of coal, and it is possible to predict CaO content in ash with coal macro petrography.

21. The paper introduces the reflectivity profile's principle of coal petrography analysis and its application. Through analysis, management of single coal and quality of matching coal have been improved.