Marsaglia, Kathleen M. (2004): Sandstone detrital modes support Magdalena Fan displacement from the mouth of the Gulf of California

Leg/Site/Hole:
DSDP 63
DSDP 63 471
Identifier:
2004-014672
georefid
10.1130/G20099.1
doi
Creator:
Marsaglia, Kathleen M.
California State University, Department of Geological Sciences, Northridge, CA, United States
author
Identification:
Sandstone detrital modes support Magdalena Fan displacement from the mouth of the Gulf of California
2004
Geology (Boulder)
Geological Society of America (GSA), Boulder, CO, United States
32
1
45-48
Detrital modes of middle Miocene sandstone recovered at Deep Sea Drilling Project Site 471 on the Magdalena Fan support the hypothesis that the fan has been displaced northward from a source hundreds of kilometers to the south near the present mouth of the Gulf of California. The modes are dissimilar to those of modern sand derived from onshore outcrops of Miocene volcanic and volcaniclastic rocks, Neogene sedimentary rocks, and Mesozoic subduction complex. They most closely match sand associated with the mouth of Gulf of California. The overall stratigraphy, sand composition, and diagenesis at Site 471 are consistent with deposition of the Magdalena Fan on young oceanic crust near a spreading ridge at a triple junction.
English
Serial
Coverage:Geographic coordinates:
North:23.2856
West:-112.2947East: -112.2947
South:23.2856
Solid-earth geophysics; Sedimentary petrology; Baja California Sur Mexico; Cenozoic; clastic rocks; clasts; Deep Sea Drilling Project; diagenesis; DSDP Site 471; East Pacific; Gulf of California; IPOD; Leg 63; Magdalena Fan; Mexico; middle Miocene; Miocene; Neogene; North Pacific; Northeast Pacific; Pacific Ocean; paleogeography; plate tectonics; provenance; sandstone; sea-floor spreading; sedimentary rocks; spreading centers; submarine fans; Tertiary; triple junctions;
.