Basalt Petrogenesis Beneath Slow - and Ultraslow-Spreading Arctic Mid-Ocean Ridges

• Main Author: Elkins, Lynne J.
• Other Authors: MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR METEOROLOGY AND PHYSICAL OCEANOGRAPHY
• Format: Text
• Language: English
• Published: 2009
• Subjects: Physical and Dynamic Oceanography; Geology; Geochemistry and Mineralogy; *RADIOACTIVE ISOTOPES; *GEOLOGIC AGE DETERMINATION; *OCEAN RIDGES; MELTING; NEODYMIUM; STRONTIUM; URANIUM; GARNET; TRACE ELEMENTS; LEAD(METAL); THORIUM; ARCTIC OCEAN ISLANDS; GEOLOGIC MODELS; MARINE GEOLOGY; MAGMA; THESES; BASALT; CLINOPYROXENE; GARNET PYROXENITE; KOLBEINSEY RIDGE; MAGMA TRANSPORT PROCESSES; Arctic; Arctic Ocean; Gakkel Ridge; Kolbeinsey; Kolbeinsey Ridge; Ocean Island
• Online Access: http://www.dtic.mil/docs/citations/ADA501860; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA501860

To explore the ability of melting mafic lithologies to produce alkaline ocean-island basalts (OIB), a study was carried out measuring clinopyroxene (Cpx)- melt and garnet (Gt)-melt partition coefficients during silica-poor garnet pyroxenite melting for a suite of trace elements, including U and Th,...