Degrees Of Copper Ore Exploration And Resources Potential Of Copper In Lower Degree Areas In China

Copper is the most important target mineral commodity of our country, and one of strategic mineral commodities which have always been being in big shortage in China. The demands from foreign resources have been increasing year after year. The aim of this research is trying to mitigate present and future contradiction of copper ore resource demand exceeding its supply, by means of strengthening exploration of domestic copper resources. In the light of goal and assignment of the investigation and evaluation for mineral resources, for the purpose of studying China's macro plan for copper ore resource exploration, by way of studying and analyzing the geologic work intensities for copper resource exploration of our country, to block out regions and areas where the intensity can be further exploited, so that their copper resource potential can be predicted. In order to realize this aim, works mainly in the following aspects are done in the thesis: (1) Establishment of space database for copper exploration of our country; (2) Analysis and classification of copper ore exploration intensity; (3) Confirmation of low-exploration-degree regions and areas; (4) Prediction and evaluation of copper resource potentials in the low-exploration-degree regions and areas; (5) Recommendations and suggestions on macroscopic plan for copper ore prospecting. 1. The space database for copper exploration covers the biggest area with most data till now in our country, based on organizing 40 units which include institutions of geological survey and former industry departments of geology and exploration. The database is composed of 5172 items of exploration data, 12442 items of ore district practical workloads, and 4961 items of copper mineral occurrences; the research of copper ore exploration intensity of our country made in this thesis is based on this database. 2. Comparatively systematic analysis and study to space GIS of copper ore exploration intensity in our country, by means of establishment of indications for exploration intensity, and spatial demarcation of different exploration intensities. Detailed works are as follows: (1) Comprehensive and systematic summing-up of invest in copper ore exploration of our country in the 20 century, and analysis of its changing characteristics. (2) Exploration intensity analysis on relations between copper ore exploration invest and their scale and resource, hence the necessary workload accumulation and amount are put forward for copper ore exploration to a specific degree in our country. (3) Foundation of parameter indexes of drilling and workload invest accumulating times for exploration intensities of copper deposits in different scales; classification and demarcation of exploration intensity. Based on this, compare the differences of exploration extents among the areas which in different administrative divisions and III-grade minerogenetic units, and divided into nine grades and set up the parameter indexes of copper ore exploration intensity on minerogenetic belts. In an all-round way in our country; so that facts of low-grade exploration intensity regions and areas for a total area of 193×104 km2 and blank of 414×104 km2 are brought to light. (4) The compiling of copper ore exploration...