Phosphorites on the Sea Floor
Title | Phosphorites on the Sea Floor PDF eBook |
Author | G.N. Baturin |
Publisher | Elsevier |
Total Pages | 355 |
Release | 1982-01-01 |
Genre | Science |
ISBN | 0080869475 |
Phosphorites on the Sea Floor
Phosphorites on the Sea Floor
Title | Phosphorites on the Sea Floor PDF eBook |
Author | Gleb Nikolaevič Baturin |
Publisher | Elsevier Science & Technology |
Total Pages | 343 |
Release | 1982-01-01 |
Genre | |
ISBN | 9780444412386 |
Phosphorites on the Sea Floor
Title | Phosphorites on the Sea Floor PDF eBook |
Author | Gleb Nikolaevich Baturin |
Publisher | |
Total Pages | 343 |
Release | 1982 |
Genre | Marine mineral resources |
ISBN |
Phosphorites on the Sea Floor
Title | Phosphorites on the Sea Floor PDF eBook |
Author | G. Baturin |
Publisher | Elsevier Science |
Total Pages | 354 |
Release | 2000-04-01 |
Genre | |
ISBN | 9780444553263 |
Phosphorite Deposits from the Sea Floor Off Peru and Chile
Title | Phosphorite Deposits from the Sea Floor Off Peru and Chile PDF eBook |
Author | William C. Burnett |
Publisher | |
Total Pages | 228 |
Release | 1974 |
Genre | Marine sediments |
ISBN |
Sedimentary phosphorites sampled from the sea floor off the coasts of Peru and Chile have been investigated to establish their ages and mode of formation. Results of uranium-series dating suggest that phosphate deposition was episodic rather than continuous during the late Pleistocene. Radiometric ages correlate well with periods of high eustatic stands of the sea. Bulk chemical and mineralogical compositions of the phosphate rocks were determined by instrumental techniques. Microanalysis, with an electron probe microanalyzer and a scanning electron microscope suggests that the apatite was authigenic and had formed as direct chemical precipitate rather than by replacement. A model of phosphorite formation is proposed which involves inorganic precipitation of apatite within anoxic pore waters and subsequent concentration of the apatite by physical processes. The concentration of apatite into indurated phosphate rocks is brought about by winnowing and reworking processes, possibly in response to a change in the sedimentary environment caused by eustatic sea-level fluctuations or tectonic movements. (Modified author abstract).
Offshore Phosphorite World Occurrences
Title | Offshore Phosphorite World Occurrences PDF eBook |
Author | |
Publisher | |
Total Pages | 494 |
Release | 1977 |
Genre | Marine mineral resources |
ISBN |
Phosphorite Deposits on the Sea-floor Off California
Title | Phosphorite Deposits on the Sea-floor Off California PDF eBook |
Author | Robert Sinclair Dietz |
Publisher | |
Total Pages | 74 |
Release | 1939 |
Genre | |
ISBN |