Title :
Geological characterization of co-rich ferromaganese crusts over the northwestern pacific seamounts
Author :
Usui, A. ; Sato, Hikaru ; Nishi, Kentaro ; Graham, I. ; Thornton, Blair ; Okamoto, N. ; Uraba, Tetsuro
Author_Institution :
Dept. of Geol., Kochi Univ., Kochi, Japan
Abstract :
We, jointly with universities and institutions (JAMSTEC, JOGMEC, GSJ) using marine geology vessels, submersibles, remotely-operated vehicle, an ocean-bottom drill machine, deep-tow TV camera as well as conventional dredges and corers, have observed, sampled, measured, and analyzed the ferromanganese crust deposits and characterized the morphology, composition, age, and growth history. The results demonstrate the diversity in distribution and nature of the deposits and relationships to microtopography and geological environment.
Keywords :
geochronology; iron compounds; ocean composition; oceanic crust; GSJ; JAMSTEC; JOGMEC; Northwestern Pacific seamounts; age characterization; analyzed ferromanganese crust deposit; co-rich ferromaganese crust geological characterization; composition characterization; conventional corers; conventional dredges; deep-tow TV camera; deposit nature; distribution diversity; geological environment relationship; growth history characterization; marine geology vessels; measured ferromanganese crust deposit; microtopography relationship; morphology characterization; observed ferromanganese crust deposit; ocean-bottom drill machine; remotely-operated vehicle; sampled ferromanganese crust deposit; submersibles; Chemicals; Educational institutions; Geologic measurements; Rocks; Sediments; Substrates; NW Pacific; ROV; ferromanganese crust; mineral resources; seamount;
Conference_Titel :
Oceans - San Diego, 2013
Conference_Location :
San Diego, CA
