IODP expeditions 309 and 312 drill an intact section of upper oceanic basement into gabbros

The Integrated Ocean Drilling Program's (IODP) Expeditions 309 and 312 successfully completed the first sampling of an intact section of upper oceanic crust, through lavas and the sheeted dikes into the uppermost gabbros. Hole 1256D, which was initiated on the Ocean Drilling Program's (ODP...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Scientific drilling (Hokkaido, Japan) Japan), 2007-03 (4), p.4-10
Hauptverfasser:	ALT, Jeffrey C, TEAGLE, Damon A. H, UMINO, Susumu, MIYASHITA, Sumio, BANERJEE, Neil R, WILSON, Douglas S
Format:	Artikel
Sprache:	eng
Schlagworte:	Crystalline rocks Earth sciences Earth, ocean, space Exact sciences and technology Igneous and metamorphic rocks petrology, volcanic processes, magmas IODP Expeditioins 309 & 312 Marine Marine geology
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The Integrated Ocean Drilling Program's (IODP) Expeditions 309 and 312 successfully completed the first sampling of an intact section of upper oceanic crust, through lavas and the sheeted dikes into the uppermost gabbros. Hole 1256D, which was initiated on the Ocean Drilling Program's (ODP) Leg 206, now penetrates to >1500 mbsf and >1250 m sub-basement. The first gabbroic rocks were encountered at 1407 mbsf. Below this, the hole penetrates similar to 100 m into a complex zone of fractionated gabbros intruded into contact metamorphosed dikes.
ISSN:	1816-8957 1816-3459
DOI:	10.2204/iodp.sd.4.01.2007