GEOUNITS: Items COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME 1 UCODE 2 5 B - 3 UNIT 5 5 C - 8 TYPE-ID 2 5 B - 10 MATERIAL 32 32 C - 42 UNIT-DESC 80 80 C - UCODE UNIT TYPE-ID MATERIAL UNIT-DESC -999 ? 0 ? 0 univ 0 univ 1 water 999 water water 18 Qyf 1 coarse alluv. fan coarser alluv. fan 20 Qof 1 coarse alluv. fan coarse-grained older alluv. fan & stream terrace 22 Qyfo 1 coarse alluv. fan younger (outer) alluv. fan dep. 24 Qob 2 fine alluv. fan fine-grained older alluv. fan & stream terrace dep. 26 Qb 3 plastic silt/silty clay basin dep. - unconsol. plastic silt & silty clay 28 Qs 5 sand sand dune & beach dep. 30 Qmt 6 sand/gravel marine terrace dep. - poorly consol. sand & gravel 31 Qc 5 sand Colma Fm - fine to medium-grained arkosic sand 66 QTs 11 conglomerate Santa Clara Fm - poorly indur. conglom, sandst & mudst 70 Qal 4 alluvium alluvium 75 Qaf 99 artificial fill artificial fill 80 QTm 12 sandstone Merced Fm - med to v. fine-gr sandst, siltst & clayst 140 Tpl 13 mudstone/shale Lobitos Mudstone Member 165 Tp 12 sandstone Purisima Fm - fine-gr sandst, siltst & mudst 170 Qm 7 bay mud bay mud - unconsol silty clay, clay & OM 200 Tpp 13 mudstone/shale Pomponio Mudst Member - porcelaneous shale & mudst 205 Tpt 12 sandstone Tahana Member - med. to v. fine-gr sandst & siltst 225 Tpsg 12 sandstone San Gregorio Sandstone Member 240 Tptu 12 sandstone Tunitas Sandst Mbr - v. fine to med.-gr. sandst w clay matrix 300 Kgr 21 granite Montara Mountain granitics 323 fsr 14 graywacke sheared rock - pred. graywacke, siltst, & shale 335 Tsm 12 sandstone Santa Margarita Sandstone 363 sp 33 serpentinite serpentinite 375 m 34 marble/limestone marble & hornfels 470 fcg 11 conglomerate conglomerate 520 Tmb 22 basalt Mindego Basalt and related volcanic rocks 536 Tb? 12 sandstone Butano (?) Sandstone 538 Tbs 13 mudstone/shale shale in Butano Sandstone 600 Tlo 12 sandstone Lompico Sandstone 625 Tpm 22 basalt Page Mill Basalt 655 Tm 13 mudstone/shale Monterey Fm - shale w/ chert, mudst, diatomite, clayst 695 Tuv 13 mudstone/shale unnamed sed & volc rx - mudst/sandst 705 Tvq 12 sandstone Vaqueros Sandst 709 fm 31 schist metamorphic rocks - pred. schist 720 KJs 12 sandstone unnamed sandstone 770 fs 12 sandstone sandstone 785 Tus 12 sandstone unnamed sandstone 800 fc 15 chert chert 803 KJv 23 felsic volcanics volcanic - felsic 810 KJf 14 graywacke Franciscan Assemblage - graywacke & shale 820 Tla 13 mudstone/shale Lambert Shale 870 Kpp 12 sandstone Pigeon Point Fm - sandst & conglom, siltst & mudst 880 Tss 12 sandstone sandstone shale & conglomerate 890 Tsr 13 mudstone/shale Rices Mudstone Member 900 Tls 13 mudstone/shale Lambert Shale/San Lorenzo Fm - mudst, siltst, shale 930 Tsl 13 mudstone/shale San Lorenzo Fm - shale, mudst, siltst 945 Ksh 13 mudstone/shale shale 960 fl 34 marble/limestone limestone 965 fg 32 greenstone greenstone 970 Tst 13 mudstone/shale Twobar Shale Member