Guidance for Contributors to the Journal

~~Guidance for Contributors to the Journal     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002-0705 CN42-1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and utilization of earth resources. Articles from both domestic and international scientists on relevant subjects are welcome. All articles are reviewed by two or more referees for scholarly presentation, technical merit, quality of scientific content and utility of the results for     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002--0705 CN42--1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and utilization of earth resources. Articles from both domestic and international scientists on relevant subjects are welcome. All articles are reviewed     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002-0705 CN42-1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and utilization of earth resources. Articles from both domestic and international scientists on relevant subjects are welcome. All articles are reviewed by two or more referees for scholarly presentation,technical…     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002 -0705 CN42 -1279/P) is a geological magazine published quar-terly in English by this university . The journal is designed forthe dissemination of information on all branches of geology andassociated technology in the exploration and utilization of earthresources . Articles from both domestic and international scien-tists on relevant subjects are welcome . All articles are reviewedby two or more referees for scholarly presentation, techn…     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002 -0705 CN42-1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and utilization of earth resources.     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002-0705 CN42-1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and utilization of earth resources. Articles from both domestic and international scien-     

Guidance for Contributors to the Journal

~~Guidance for Contributors to the Journal     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002—0705 CN42—1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and utilization of earth resources. Articles from both domestic and international scien     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002-0705 CN42--1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and uti|izafion of earth resouroes. Articles from both domestic and international scientists on relevant subjects are welcome. All articles are reviewed by two or more referees for scholarly presentation,     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002-0705 CN42-1279/P) is a geological magazine published     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002 - 0705 CN42-1279/P) is a geological magazine published quar-terly in English by this university. The journal is designed for the dissemination of information on all branches of geology find associated …     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002-0705 CN42-1279/P) is a geological magazine published quarterly in English by this university. The journal is designed for     

Guidance for Contributors to the Journal

Journal of China University of Geosciences (ISSN 1002-0705 CN42-1279/P) is a geological magazine published quarterly in English by this university.The journal is designed for the dissemination of information on all branches of geology and     

Guidance for Contributors to the Journal

Journal of China University of Geosciences （ISSN 1002-0705 CN42-1279/P） is a geological magazine published quarterly in English by this university. The journal is designed for the dissemination of information on all branches of geology and associated technology in the exploration and utilization of earth resources. Articles from both domestic and international scien tists on relevant subjects are welcome. All articles are reviewed by two or more referees for scholarly presentation, technical merit, quality of scientific content and utility of the results for practicing geologists. The Editorial Committee reserves the final decision concerning the acceptance of a paper.     

Analytical Model for the Palaeoenvironmental Evolution of the Nihewan Beds

In this paper, the evolutional characteristics of palaeoclimate and oxidation-reduction conditions as well asacidity-alkalinity environment are discussed by means of the step-regression, cluster, optimal partitioning andcorrelation analyses of CaCO_3, C / P_2O_5, Fe~(2+) / Fe~(3+), pH and Eh values, taking the Xiaodukou section in theNihewan basin as an example. The CaCO_3, C / P_2O_5 and pH were calculated respectively using the optimalpartitioning method. Thus five cold zones and six warm zones as well as five reduction and six oxidation zoneswere distinguished. Then the inductive method was used to produce four numerical groups: 8.10, 8.3-8.4,8.6-8.7 and 8.9-8,97. The above-mentioned results are respectively based on CaCO_3 content, C/P_2O_5 andpH values. From Fig. 3, Tables 1 and 2 it can be seen that the Nihewan Beds were formed mainly under a re-duction and slightly alkaline environment of cold climate, with pH values of 8.3-8.4. Fig. 3 shows that bed 35is approximately near the boundary between the Brunhes and Matuyama polarity epochs, 0.73 Ma in age; bed26 is roughly near the Jaramillo event (base), 0.97 Ma in age; bed 18 coincides roughly with themagnetostratigraphic boundary of 2.00 Ma (?). Bed 13 may be the Pleistocene-Pliocene boundary, 2.48 Ma inage. Thus geochemical zones Ⅰ, Ⅱ, Ⅲ and Ⅳ include respectively cold zones 1; 2 and 3; 4; and 5.     

On the Origin of the Carat as the Unit of Weight for Gemstones

The carat is the unit of weight for diamonds and other gemstones.It corresponds to the average weight of the seeds of a leguminous tree.What kind of tree is this?We have studied the samples from Ethiopia,Egypt,Cyprus and the United States.The tree is neither“Kuara“nor“Locust“（Robina pseudoacacia Linn.）,but rather Carob(Ceratonia Siliqua).In Ethiopia,as called by local inhabitants,“Kuara“is a species of Erythrina-E.brucei rather than E.abyssinica.As might be expected,using the seeds as a means of weighing an extremely valuable commodity is not very scientific.Before 1907,at various times and in various countries,there were at least twenty-three stan-dards for the carat ranging from 187.00mg to 215.990mg.The metric carat equal to 200mg was proposed in Paris in 1907.It was adopted in the United States on July1,1913 and now is the world-accepted standard.But in reality,the standard of the carat is still confused with respect to its usage throughout the world .This is why the author reiterates that the standard of the car-at should be integrated with the metric system.     

Two-Level Subduction in the Upper Mantle as a Mechanism for the Evolution of the Eastern Arctic Lithosphere for the Late Jurassic–Early Cretaceous

Doklady Earth Sciences - The popular rotational hypothesis of the formation and evolution of the main structures of the Eastern Arctic lithosphere during the Late Jurassic–Early Cretaceous,...