Record details

Title
    Causes of compositional diversity in a lobe of the Half Dome granodiorite, Tuolumne Batholith, Central Sierra Nevada, California
Author
    Economos, Rita
    Erdmann, Saskia
    Memeti, Valbone
    Miller, Jonathan
    Paterson, Scott
    Žák, Jiří
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Earth and Environmental Science Transactions of the Royal Society of Edinburgh
Vol./nr.
    Roč. 100, č. 1-2
Pages
    11
Year
    2010
Thesaurus term
    Batholith,
    California
    Causes
    Central
    compositional
    diversity
    Dome
    granodiorite,
    Half
    lobe
    Nevada,
    Sierra
    the
    Tuolumne
Keyword
    Batholith
    California
    Causes
    Central
    Compositional
    Diversity
    Dome
    Granodiorite
    Half
    Lobe
    Nevada
    Sierra
    Tuolumne
Abstract (in english)
   The causes of compositional diversity in the Tuolumne Batholith, whether source heterogeneity, magma mixing, or fractional crystallisation, is a matter of longstanding debate. This paper presents data from detailed mapping and a microstructural and major element, trace element and isotopic study of an elongate lobe of the Half Dome granodiorite that protrudes from the southern end of the batholith. The lobe it; normally zoned from quartz diorite along the outer margin to high-silica leucogranite in the core. Contacts are steep and gradational, except for the central leucogranite contact, which is locally sharp: magmatic fabrics overprint contacts.
Contributor
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
    R
Import date
    8. 8. 2012