|
|||||
|
|
Galapagos hydrothermal mounds: stratigraphy and chemistry revealed by deep-sea drilling |
|
| Authors: | Natland J H Rosendahl B Hekinian R Dmitriev Y Fodor R V Goll R M Hoffert M Humphris S E Mattey D P Petersen N Roggenthen W Schrader E L Srivastava R K Warren N |
| Abstract: | The Galápagos mounds sea-floor hydrothermal system is at least 300,000 years old and once produced manganese-poor sediments, which nearly blanketed the area of the present mounds field. Present-day mound deposits are limited manganese-rich exposures, suggesting that the system has changed from rock-to water-dominated and has diminished in intensity with time. |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ | |