Comment on ‘New insights on Franciscan Complex geology, architecture, depositional age, and provenance for the western Mt. Tamalpais area, Marin County, California’ by Bero et al. (2020)

2021 ◽  
pp. 1-7
Author(s):  
Russell W. Graymer ◽  
Trevor A. Dumitru ◽  
Robert J. McLaughlin ◽  
Carl M. Wentworth
Keyword(s):  
Franciscan Complex ◽  
Marin County ◽  
Depositional Age ◽  
Complex Geology

Sandstone matrix olistostrome deposited on intra-subduction complex serpentinite, Franciscan Complex, western Marin County, California

2012 ◽  
Vol 568-569 ◽  
pp. 296-305 ◽  
Author(s):  
Rachel Prohoroff ◽  
John Wakabayashi ◽  
Trevor A. Dumitru
Keyword(s):  
Franciscan Complex ◽  
Marin County

Powder X-Ray Diffraction Data of Florencite-(Nd)

1986 ◽  
Vol 1 (4) ◽  
pp. 330-330 ◽  
Author(s):  
Joan Fitzpatrick
Keyword(s):  
Powder Diffraction ◽  
Diffraction Data ◽  
Microscopic Examination ◽  
Spectrographic Analysis ◽  
X Ray Diffraction ◽  
Powder Diffraction File ◽  
X Ray ◽  
Fracture Surfaces ◽  
Franciscan Complex ◽  
Marin County

Florencite-(Nd) [(Nd,Ce)Al3(PO4)2(OH)6], was first described by Milton and Bastron (1971) from fracture surfaces in weathered cherts of the Franciscan Complex, south of Sausalito in Marin County, California. Florencite-(Nd) occurred there as a moderate-brown pulverulent earthy material; individual crystals were not discernible under microscopic examination. A semi-quantitative spectrographic analysis showed the presence of Nd (3 wt. %) and Ce (0.5 wt. %). No powder data for florencite-(Nd) exists in the current powder diffraction file.

DETRITAL ZIRCON U-PB AGES PROVIDE CONSTRAINTS ON THE DEPOSITIONAL AGE AND STRUCTURE OF THE FRANCISCAN COMPLEX, MT. TAMALPAIS, CA

2018 ◽  
Author(s):  
Victoria Simoneau ◽  
◽  
Owen A. Anfinson ◽  
David A. Bero ◽  
Joseph Adams ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
Franciscan Complex ◽  
Depositional Age
Sign in / Sign up

Export Citation Format

Share Document