Heavy minerals survey as an economic prospecting had been widely applied during 1960 to 1980 with regional survey. It accumulated large quantity of data, which had been systematically processed in recent ten years during national mineral resource assessment project. This paper analyzes its issues and outlook of heavy minerals prospecting, concludes that heavy minerals and their combination indicate many kinds of metals deposits including gold and silver, black metal and partial nonmetallic minerals, determine the genesis of deposits, and look for possible magmatic intrusions. It also can be used to study regional petrology, structures, regional structural framework. This paper presents approaches to heavy minerals and data application.

REE phosphate fertilizer is produced from phosphate material with added REE. Phosphate ore in Zhijin, Guizhou province, abounds in REE, but too hard to be recovered by normal processing. This paper, attempting at the feasibility of this phosphate ore to be used for producing REE phosphate fertilizer without adding other REE, reviews the processing technology of phosphate fertilizer, and evaluates the feasibility from REE occurrence, composition, content and radioactivity, which are all consistent with the requirements of REE phosphate fertilizer production. Radioactivity is less than standard 500Bq/kg, and the total content is 0.2%, means the ore fits for producing lowREE fertilizer. This paper theoretically verifies the feasibility of REEbearing phosphate ore can be directly used for production of REE phosphate fertilizer.

It is no doubt that the eco-footprint model can be used to mark the global sustainable development and regional development, but not for regional sustainable development. This paper, aiming at this limit, presents an improved eco-footprint model which has been applied to analyze the relationship among productive eco-footprint, consumptive eco-footprint and ecological capacity in Ji'ning, a typical coal-crop composite production area. The results indicate that Ji'ning's regional unsustainable development is chiefly derived from the over-output eco-footprint, besides the regional self consumption. Mineral products and agricultural products shall take the responsibility to recover the regional environment in Ji'ning.