Phosphate deposits of the former Japanese i
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- journal_title：Economic Geology
- Contributor：John Rodgers
- Publisher：Society of Economic Geologists
- Date：1948-
- Format：text/html
- Language：en
- Identifier：10.2113/gsecongeo.43.5.400
- journal_abbrev：Economic Geology
- issn：0361-0128
- volume：43
- issue：5
- firstpage：400
- section：Articles
摘要
"Most of the deposits occur as an irregular mantle of phosphate or phosphatic clay over and between bizarre pinnacles of raised limestone. Phosphatic solutions from bird droppings attacked the limestone; further weathering and solution produced the phosphatic mantle and shaped the pinnacles. However, the best deposits on Angaur are blanket deposits under swamps and apparently represent further alteration of deposits ofthe first type."