The Circum-Pacific region contains four major phosphogenic provinces. These include: (1) North American and (2) South American marine phosphogenic provinces and (3) the Oceania insular province, all three of which have been actively forming until the recent geologic past, and (4) the Australian-Asian Proterozoic and lower Paleozoic province, which is extinct.
The phosphate resources in these provinces throughout the Circum-Pacific region exceed 26 billion tons of phosphate rock. In spite of this amount, little phosphate rock is mined at present, and many countries of the region, including some with the greatest need for fertilizer, lack phosphate resources. However, exploration is not complete in much of the region, particularly southern Asia. Thus, the opportunities for development of phosphate resources to meet the agricultural needs of the region are many.
Figures & Tables
The energy and mineral resources of the vast Pacific basin and its neighboring land areas play a vital role in meeting the ever-growing needs of society worldwide. Building on the foundation of a highly successful conference held in 1978, this volume contains 51 of the 135 papers presented there. Subjects included are general and specific in nature--oil, gas, and coal resources; geothermal fields, uranium; tin; evaporites, trace elements; water resources; magma energy and fuels from magma. Geological and geophysical techniques, and also the new tool of remote sending for petroleum and minerals exploration are represented. Tectonics, structure fundamentals, subsurface hazards, international treaties and the law of the deep sea are discussed. Seventeen countries and regions are represented in these papers: Thailand, Nicaragua, the United States, Japan, Peru, Antarctica, El Salvador, Australia, Mexico, Taiwan, New Zealand, China, Chile, Indonesia, Canada, and the Pacific Ocean.