REE geochemistry of late Miocene lavas from Pioneertown, Fry Mountain and Ruby Mountain, California
Conference
·
· Geological Society of America, Abstracts with Programs; (United States)
OSTI ID:5099169
- California State Univ., San Bernardino, CA (United States)
A series of flows, dikes and cinder cones of alkaline and subalkaline basalts erupted in late Miocene time along the northeastern flank of the San Bernardino Mountains and in contiguous parts of the Mojave Desert. Previous studies of lavas from the region yielded K-Ar ages of 6 to 9 Ma, and reported that lavas from the Ruby Mountain locality often contain ultramafic inclusions of probable mantle origin. This study (1) characterizes the rare earth element (REE; light = LREE; heavy = HREE) and trace element compositions of the young lavas from this region, (2) discusses the relationship of the Pioneertown lavas with the hot-spring ( ) deposits stratigraphically beneath the lava flows, (3) speculates on the possible volcanic conduit for the Pioneertown lavas, and (4) discusses the petrogenesis of these late Miocene lavas.
- OSTI ID:
- 5099169
- Report Number(s):
- CONF-9305259--
- Conference Information:
- Journal Name: Geological Society of America, Abstracts with Programs; (United States) Journal Volume: 25:5
- Country of Publication:
- United States
- Language:
- English
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Major-element geochemistry of the Silent Canyon--Black Mountain peralkaline volcanic centers, northwestern Nevada Test Site: applications to an assessment of renewed volcanism
Conference
·
Sun Feb 28 23:00:00 EST 1993
· Geological Society of America, Abstracts with Programs; (United States)
·
OSTI ID:5807010
Geochemically distinct sources for interstratified lavas from the Nejapa cinder cone alignment, Nicaragua
Conference
·
Mon Dec 31 23:00:00 EST 1984
· Geol. Soc. Am., Abstr. Programs; (United States)
·
OSTI ID:6649629
Major-element geochemistry of the Silent Canyon--Black Mountain peralkaline volcanic centers, northwestern Nevada Test Site: applications to an assessment of renewed volcanism
Technical Report
·
Sun Dec 30 23:00:00 EST 1979
·
OSTI ID:59609
Related Subjects
58 GEOSCIENCES
580000* -- Geosciences
AGE ESTIMATION
BASALT
CALIFORNIA
CENOZOIC ERA
CHEMISTRY
DEVELOPED COUNTRIES
ELEMENTS
GEOCHEMISTRY
GEOLOGIC AGES
GEOLOGIC FORMATIONS
GEOLOGY
IGNEOUS ROCKS
ISOTOPE DATING
LAVA
METALS
MIOCENE EPOCH
NORTH AMERICA
PETROGENESIS
PETROLOGY
RARE EARTHS
ROCKS
TERTIARY PERIOD
USA
VOLCANIC ROCKS
580000* -- Geosciences
AGE ESTIMATION
BASALT
CALIFORNIA
CENOZOIC ERA
CHEMISTRY
DEVELOPED COUNTRIES
ELEMENTS
GEOCHEMISTRY
GEOLOGIC AGES
GEOLOGIC FORMATIONS
GEOLOGY
IGNEOUS ROCKS
ISOTOPE DATING
LAVA
METALS
MIOCENE EPOCH
NORTH AMERICA
PETROGENESIS
PETROLOGY
RARE EARTHS
ROCKS
TERTIARY PERIOD
USA
VOLCANIC ROCKS