Copertina

Salvato in:
Dettagli Bibliografici
Autore principale: Gorbunova, Zinaida N
Natura: Dataset Open Access
Lingua:en
Pubblicazione: PANGAEA 1988
Soggetti:
16-163; 17-164; Aluminium/(Aluminium+Iron+Manganese) ratio; Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Iron/Aluminium ratio; Iron oxide, Fe2O3; Latitude of event; Leg16; Leg17; Longitude of event; Magnesium/Aluminium ratio; Magnesium oxide; Manganese oxide; North Pacific/CONT RISE; North Pacific Ocean; Potassium oxide; Sample code/label; Sample type; Silicon dioxide; Sodium oxide; Titanium/Aluminium ratio; Titanium dioxide; X-ray fluorescence (XRF)
Accesso online:https://doi.org/10.1594/PANGAEA.756859
Tags: Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
Sommario:
  • Considerable postsedimentational alteration of fine dispersed minerals in Cretaceous sedimentary sequences was found in three deep-sea drillholes (163, 164, 169). Original Fe-montmorillonites formed from basalts were converted during lithification to mixed-layer montmorillonite-hydromicas and then to pure hydromicas (celadonites). An assumption that the minerals were originally of authigenic-diagenetic composition is based on a broad spectrum of other diagenetic minerals present: silica group from opal A to opal CT and quartz, clinoptilolite and palygorskite. In addition, quartz-hydromica ratio is strikingly atypical of aeolian transport.

Documenti analoghi