Compositional trends in arc-related, deep-marine sand and sandstone; a reassessment of magmatic-arc provenance; with Suppl. Data 92-36

Online Access: Get full text
doi: 10.1130/0016-7606(1992)104<1637:CTIARD>2.3.CO;2
Author(s): Marsaglia, Kathleen M.; Ingersoll, Raymond V.
Author Affiliation(s): Primary:
University of Texas at El Paso, Department of Geological Sciences, El Paso, TX, United States
University of California at Los Angeles, United States
Volume Title: Geological Society of America Bulletin
Source: Geological Society of America Bulletin, 104(12), p.1637-1649. Publisher: Geological Society of America (GSA), Boulder, CO, United States. ISSN: 0016-7606 CODEN: BUGMAF
Note: In English. 67 refs.; illus. incl. 4 tables, sketch maps
Summary: Detrital modes for 524 deep-marine sand and sandstone samples recovered on circum-Pacific, Caribbean, and Mediterranean legs of the Deep Sea Drilling Project and the Ocean Drilling Program form the basis for an actualistic model for arc-related provenance. This model refines the Dickinson and Suczek (1979) and Dickinson and others (1983) models and can be used to interpret the provenance/tectonic history of ancient arc-related sedimentary sequences. Four provenance groups are defined using QFL, QmKP, LmLvLs, and LvfLvmiLvl ternary plots of site means: (1) intraoceanic arc and remnant arc, (2) continental arc, (3) triple junction, and (4) strike-slip-continental arc. Intraoceanic- and remnant-arc sands are poor in quartz (mean QFL%Q < 5) and rich in lithics (QFL%L > 75); they are predominantly composed of plagioclase feldspar and volcanic lithic fragments. Continental-arc sand can be more quartzofeldspathic than the intraoceanic- and remnant-arc sand (mean QFL%Q values as much as 10, mean QFL%F values as much as 65, and mean QmKP%Qm as much as 20) and has more variable lithic populations, with minor metamorphic and sedimentary components. The triple-junction and strike-slip-continental groups compositionally overlap; both are more quartzofeldspathic than the other groups and show highly variable lithic proportions, but the strike-slip-continental group is more quartzose. Modal compositions of the triple junction group roughly correlate with the QFL transitional-arc field of Dickinson and others (1983), whereas the strike-slip-continental group approximately correlates with their dissected-arc field.
Year of Publication: 1992
Research Program: DSDP Deep Sea Drilling Project
ODP Ocean Drilling Program
Key Words: 06 Petrology, Sedimentary; 18 Geophysics, Solid-Earth; Atlantic Ocean; Caribbean Sea; Cenozoic; Clastic rocks; Clastic sediments; Composition; Cretaceous; Deep Sea Drilling Project; Deep-sea environment; Detrital sedimentation; Faults; Island arcs; Marine environment; Mediterranean Sea; Mesozoic; Mineral composition; Modal analysis; North Atlantic; Ocean Drilling Program; Pacific Ocean; Petrography; Plate tectonics; Provenance; Sand; Sandstone; Sedimentary rocks; Sedimentation; Sediments; Statistical analysis; Strike-slip faults; Structural controls; Triple junctions
Record ID: 1992043713
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.

Similar Items