The metamorphic and plutonic rocks of the southernmost Sierra Nevada, California, and their tectonic framework

--------------------------l Introduction------------------------1 Acknowledgments----------------------3 Metamorphic rocks ---------------------3 Metasedimentary rocks of the Keene area-------3 Setting -----------------------3 Rock types and petrography------------5 Metasedimentary rocks of Salt Creek ----------6 Setting -------------------------6 Rock types and petrography------------6 Gneiss, amphibolite, and granulite of San EmigdioTehachapi Mountains -------------7 Setting -----------------------7 Description of rock types --------------7 Gneiss ----------------------7 Amphibolite -------------------8 Granofels --------------------9 Granulite --------------------9 Impure quartzite and calc-hornfels -------9 Mafic metamorphic and plutonic bodies related(? ) to the San Emigdio-Tehachapi terrane --------10 Live Oak ----------------------10 Breckenridge --------------------H Pampa------------------------H Walker -----------------------H Caliente -----------------------12 Comanche ----------------------12 Cummings----------------------12 Loop inclusion swarm ----------------13 Tweedy -----------------------13 Cameron ----------------------13 Cinco ------------------------14 Jawbone-----------------------14 Eagle Rest Peak ------------------15 Felsic gneiss bodies related(? ) to the San EmigdioTehachapi terrane ---------------15 Mountain Park -------------------16 Tweedy Creek-------------------16 Brown Meadow -------------------16 Metavolcanic rocks of French Gulch----------16 Setting -----------------------16 Rock types and petrography------------17 Metamorphic rocks in the subsurface of the southeastern San Joaquin Valley --------------17 Metaigneous rocks-----------------17 Metasedimentary rocks ---------------17 Relation to the Pampa Schist ------------18 Bean Canyon Formation -----------------18 Setting -----------------------18 Rock types and petrography------------18 Age -------------------------20 Pampa Schist of Dibblee and Chesterman (1953) ----20 Setting -----------------------20 Rock types and petrography------------21 Rand Schist ------------__---_----__ 21 Setting and age -------------------21 Rock types and petrography------------21 Rand(? ) Schist in the San Emigdio Mountains ----23 Plutonic rocks-----------------------23 Units north of the Garlock fault------------23 Granitic rocks related(? ) to the San EmigdioTehachapi terrane ---------------23 Quartz diorite to tonalite of Antimony Peak23 Diorite to tonalite of Tehachapi Mountains 24 Tonalite of Bear Valley Springs -----------26 Setting ---------------------26 Petrography-------------------26 Relation to the gneiss, amphibolite, and granulite of San Emigdio-Tehachapi Mountains 32 Felsic masses within the tonalite of Bear Valley Springs ------------------33 Tonalite of Mount Adelaide -------------36 Setting ---------------------36 Petrography------------------37 Tonalite of Hoffman Canyon ------------39 Setting ---------------------39 Petrography------------------40 Granite of Saddle Spring Road -----------42 Granodiorite of Lebec ----------------42 Setting ---------------------42 Petrography -------------------43 Fine-grained facies ---------------45 Felsic marginal facies --------------45 Granodiorite of Claraville --------------45 Setting ---------------------45 Petrography-------------------48 Granodiorite of Sorrell Peak ------------51 ____________________ 51 Setting --------Petrography-----Granite of Tehachapi Airport Setting --------Petrography-----Granite of Lone Tree Canyon Setting --------Petrography __________ 52 ---------52 ---------52 ---------55 ---------55 ---------55 Granite of Brush Mountain -------------56 Setting ---------------------56 Petrography------------------56 Granite of Bishop Ranch --------------57 Setting ---------------------57 Petrography-------------------58 Plutonic rocks in the subsurface of the southeastern San Joaquin Valley----------------58 Diorite and gabbro -----------------58 Hornblende-biotite tonalite -------------59 Biotite tonalite -------------------60 Granitic rocks, undivided --------------60 Units south of the Garlock fault------------61 Granodiorite of Gato-Montes -------------61 Setting ---------------------61 Petrography------------------61 Granodiorite of Cameron --------------61 Setting ---------------------61 Petrography-------------------61 Granite of Tejon Lookout --------------62 Setting ---------------------62