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Chinese Continental Scientific Drilling
Project
 

THE SIGNIFICANT PROGRESSES OF CHINA STATE GEOLOGICAL WORKS IN 2001

 


1.Chinese Continental Scientific Drilling Project has started drilling ceremonially.

  On August 4, 2001,in Donghai County, Jiangsu province, Wan Guoquan, Vice Chairman of the National Committee of the Chinese People's Political Consultative Conference pressed the start-button of the drill rig. This declared that Chinese Continental Scientific Drilling Project which has been paying close attention by global geology circle and whose drill hole's depth was designed to be five kilometers was commenced completely. Vice Premier Wen Jiabao sent a congratulation message for this. More than 100 geology researchers and engineering technicians work hard near the coast of the east China Sea day and night. To the midnight of December 31,2001, the depth of the borehole has amounted to 1276.98 meters. A passel of very valuable drilling cores, debris, layer fluid samples, geophysical logging samples and other related information have been obtained. Scientists have set out to carry out research on earth crust's compositions, structure and the related information. The engineering indicates that the new stage of national geoscience and earth exploration technology is coming.

2.The pace of regional geological survey in Tibet plateau was quickened comprehensively.

  CGS strengthened the utilization of the new technologies and measures so as to accelerating the pace of regional geological survey at the scale of 1:250000 in the areas of Tibet plateau, where without geological mapping before. More than 700 geologists came from more than 30 geological survey and research units marched to the snowfield, setting their feet in 642,000 Km2. They have discovered a lot of geologically significant geologic bodies, tectonic belts, palebiota fossils and geology prospecting clues and gained a great lot of field practical data which reflect the uplifting process and its effect on climate and environment. All these have theoretical and practical meanings in researching the evolution, tectonic framework, stratigraphic division, resources and geological environment assessment and climate changes of Tibet plateau.

3.The important results in gas hydrates survey and research in China's national ocean regions.

  Carbonate encrustation pictures which are direct indications of gas hydrates presence have been taken in the Xisha trough after widespread geophysical signs (BSR) had been found in the Xisha trough which can proved the existence of gas hydrates. And at the same time it is for the first time that BSR signs were discovered both in othe ocean regions of China, which shows the huge broad prospect of the existence of gas hydrate resources in China's sea areas. Through preliminary evaluation, the prospective resources reserve of gas hydrate only in the Xisha trough is in excess of 4 billion tons oil equivalence and the prospective reserve of the whole continental slope area of northern part of the South China Sea is more considerable than the former. And in the meanwhile, the first Gas Hydrate Simulation in Laboratory has been made in Qingdao recently. This laboratory and experiment were self-developed and built by China. And its intelligence property belongs to china completely. In China at present it is the only laboratory where we can carry out gas hydrate simulation experiment in sea sediments.

4. The significant progresses in the assessment on multi-metal silver ore in Yuxinan area.

  Through strengthening comprehensive research, adjusting the train of thought and changing prospecting direction, remarkable results have been achieved in exploration work in the main multi-metal silver mineralization provinces of Yuxinan area. Up to now we have ascertained that lead and zinc reserves is in excess of 3000 thousand tons and silver reserves is up to 6000 tons. The prospective reserves are expected to increase substantially and for this reason Yuxinan area will grow into a third lead and zinc resources exploration base at national level.

5. Ultra-mega copper ore enrichment belt has been discovered in Gangdise area of Tibet.

  In Gangdise mineralization belt of Tibet, more than 80 geochemical exploration anomalies, 30 mineral occurrences and 10 deposits have been discovered. The existing exploration results indicate that it is probable to find out mega or ultra-mega deposits in Jiama, Chongjiang, Tingguan and Qulong areas. We predicted, through comprehensive survey and assessment work for two to three years, that the whole Gangdise metallogenic belt will become a third copper mineral belt at world level of our country with great probability. The discovery of this metallogenic belt is of greatly strategic significance for the development of Brahmaputra, Lhasa River and Nianchu River areas and the construction of Qing-Zang railway economic belt.

6. The important and large numbers of results in multi-goal geochemical survey which mainly aimed at agricultural environment in economically developed areas.

  For the first time, we developed experimental unit work of multi-goal geochemical survey which mainly aimed at agriculture environment in economically developed and densely inhabited areas of our country, finishing geochemical survey of 52 kinds elements in the areas which cover more than 60 thousand square kilometers and mapped the macro-geochemical sketch, which revealed regional distribution scale, range and characteristics of heavy metal pollution .All these results provide important archives for ecological environment and soil quality assessment, basic geology and resources potential prediction.

7.The significant progresses in underground water survey

  We have made important progresses in finding emergency water supply areas, in underground water investigation and environmental geological survey in Beijing area ,one of the main areas which are shortage of water of eastern China ; made breakthrough in karst underground water survey , ascertaining a emergency water supply area in Huirou area whose emergency water supply capacity amounts to 120 million cubic meters per year. In western droughty areas, the important progresses have been attained in surveying and assessing karst water around Ordos basin and surveying underground water in Cretaceous system artesian basin. According to the preliminary assessment, the general make-up quantity of karst water around the Ordos Basin is 1.41 billion cubic meters per year. More than 460 water wells have been built in other areas where it is very difficult for people and domestic animals to have water for living, which to a great degree relieved local serious water scarcity problem.

8. The preliminary results in environmental geological survey in disaster areas where the inhabitants suffer from floods of middle reaches of Changjiang.

  We have finished compartmentalization work on neotectonism in disaster areas of middle reaches of Changjiang; have carried out reaches division and analysis work in which we took flood forming into consideration and as center and preliminarily we have brought forward floods prevention and mending measures for every reach .We have put forward nature environment regulating ,a new conception from the two points of view : geoscience evaluation regulate and changing disadvantages into advantages .

9. The two significant geology research results have won the China State Awards.

  The two projects: 1:500000 digital geology map data base of the People's Republic of China, finished by CGS and other institutes, and Regional geochemistry and agriculture & human beings' health, finished by National Geologiical Experimental Center, CGS and other institutes, have won the second prize of China State Awards for progresses in science and technology. 1:500000 digital geology map data base of the People's Republic of China has been presented for more than 200 national organizations and institutes, such as the General Office of the State Council, the Ministry of Foreign Affairs, China Academy of Geological Sciences and China University of Geoscience, which was a successful experiment for geological survey results' services to the society.

10. Field digital collection system has been developed successfully.

  CGS has successfully developed Field digital collection system for geological survey which integrated palmtop computer, pocket GPS receiver, digital camera, digital tape pen and digital vidicon etc.. By using GIS technology the system can reflect field GPS placement results on relief maps and remote sensing maps which have been saved in palmtop computer, making main flow which was composed of recording complex map and text information exactly in field, drawing geology pencil sketch and data processing come into preliminary information. This to a great extent improves the precision of geology work, making work efficiency to be improved by 5 to 10 times and supplied our country's technology gap in information spot digital collection of geological survey.




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