SOUTHERN BORDERLAND EXPEDITION  ABBREV.  SAMPLE/ DATE END DATE COLLECTED LATITUDE (DEGREES) LATITUDE (MINUTES) N or S LONGITUDE (DEGREES) LONGITUDE (MINUTES) E or W END LATITUDE (DEGREES) END LATITUDE (MINUTES) N or S END LONGITUDE (DEGREES) END LONGITUDE (MINUTES) E or W WATER DEPTH (M) CORE LENGTH (CM) COMMENT  DEVICE  COLLECTED Southern  Borderland SOB 1D 1960/02/12 1960/02/12 31 38.3 N 116 51.5 W 460-180 0 "Rocks of various types; phosphorite, granite, glaucophine ss, basalt, etc. West edge of bank, 10 miles SW of Punta Banda." Southern Borderland SOB 2G 1960/02/12 31 33.4 N 117 1.3 W 1280 126 Olive green silt. Flat Basin 2o miles SW of Punta Banda. Southern Borderland SOB 3D 1960/02/12 1960/02/13 31 29.3 N 117 10.6 W 1335 0 Mud only. Ridge about 30 miles SW of Punta Banda. Southern Borderland SOB 4G 1960/02/13 31 15.2 N 117 44.2 W 1931 122 Greenish-brown mud. Southern Borderland SOB 5D 1960/02/13 1960/02/13 31 17 N 117 35 W 31 21 N 117 40 W 2100-2120 0 "Five gunny sacks of cobbles of basalt, manganese, phosphorite, etc. Largest (not kept) was a rounded block of basalt about one foor on a side. Flat basin. Biological Trawl." Southern Borderland SOB 6D 1960/02/14 1960/02/14 31 17.1 N 118 27.5 W 650 0 Basalt. Top of outer ridge. Southern Borderland SOB 7D 1960/02/14 1960/02/14 31 14.4 N 118 30.2 W 1010-503 0 "No sample, but scratches indicate Mn crust. South side of outer ridge." Southern Borderland SOB 8G 1960/02/14 30 50 N 117 57.7 W 1170 20 Sand composed of manganese grains and forams with clay. Top of outer ridge. Southern Borderland SOB 9G 1960/02/14 30 54.8 N 117 52.5 W 2070 127 Blue mud capped with an inch of brown mud. Basin to east of outer ridge. Southern Borderland SOB 10D 1960/02/14 1960/02/15 30 11.9 N 117 37.7 W 1300 0 "Dolomite (?), manganese, phosphorite, and sandstone. Top of outer massive ridge." Southern Borderland SOB 11G 1960/02/15 30 18.1 N 117 30.8 W 3244 122 Greenish-brown mud. Bottom of narrow basin. Southern Borderland SOB 12D 1960/02/15 1960/02/15 29 42 N 117 10 W 29 45 N 117 12 W 2750 0 "Biological Trawl. Tar, clay, pumice, and artifacts (cloth, broken lens, paint). Trough, continuation of Cedros Deep." Southern Borderland SOB 13D 1960/02/16 1960/02/16 29 30.5 N 117 17 W 820-540 0 "Pumice, volcanic ash, basalt - some covered by manganese crust. Some of the largetst boulders split and large parts were not sacked. Largest about 18 inches long. Outer seamount at head of Cedros Deep." Southern Borderland SOB 14G 1960/02/16 29 16.8 N 117 32.4 W 4087 188 "Brown clay, also some blue clay. Basin east of Guadalupe." Southern Borderland SOB 15G 1960/02/17 28 57.8 N 117 31.4 W 3525 269 Tan and brown mottled clay. Mohole site. Southern Borderland SOB 16G 1960/02/17 29 10 N 116 42.5 W 4082 223 "Brown and mottled at top, grades into dark grey-blue at base. Cedros Deep." Southern Borderland SOB 17D 1960/02/18 1960/02/18 29 37 N 116 31 W 567-495 0 "Volcanic rock, mostly lava with zeolites. Also fine grained rock which might be limestone. (Dolomite). Seamount north of Cedros Ridge." Southern Borderland SOB 18G 1960/02/18 1960/02/18 29 59 N 116 33.7 W 2840 141 Tan at top and grades to brownish blue silty clay at base. Basin San Quintin. Southern Borderland SOB 19D 1960/03/09 1960/03/09 31 4.5 N 116 30 W 146 0 Test of Deep Diving Dredge by Isaacs and Associates. Jar of green mud with sand and forams. Shelf near Cabo Colnett. Southern Borderland SOB 20D 1960/03/12 1960/03/12 31 23.4 N 118 3.1 W 1040 0 "Misc. large boulders, 1 to 1.5 feet across, rounded. Manganese covered. Some gabro and extrusive. 11 gunny sacks and one large Mn boulder. Bank top." Southern Borderland SOB 21D 1960/03/12 1960/03/12 31 24 N 117 36.5 W 1200 0 North side of a ridge SW of Valero Basin. Southern Borderland SOB 21aD 1960/03/13 1960/03/13 31 19 N 118 45 W 420-510 0 A few small pieces of trachyte. Top of ridge SW of Valero Basin. Southern Borderland SOB 22D 1960/03/13 1960/03/13 31 21 N 119 3 W 915 0 "Shale, sandstone, and manganese. Outer rim of outer ridge trending from Shephard's Chart." Southern Borderland SOB 23G 1960/03/13 31 19.4 N 118 58.8 W 905 0 Some sand and gravel. Outer ridge. Southern Borderland SOB 24G 1960/03/13 31 7 N 118 39 W 2143 49 Light to dark grey-blue mud. Very fine. Small Basin. Southern Borderland SOB 25D 1960/03/13 1960/03/13 31 5 N 118 7 W 1650-1830 0 "20 lbs. of basalt cobbles and manganese rinds. Outer narrow ridge, ""The Rampart.""" Southern Borderland SOB 26D 1960/03/14 1960/03/14 30 39 N 119 11 W 2200 0 No sample. Southern Borderland SOB 26aG 1960/03/14 30 33.1 N 118 8.4 W 2975 162 "Brown at top grading to greyish blue at base. ""Continental Slope.""" Southern Borderland SOB 27D 1960/03/14 1960/03/14 30 17.5 N 117 40 W 1060 0 Sandstone and manganese. Dolomite Ridge. Southern Borderland SOB 28D 1960/03/15 1960/03/15 30 4.5 N 117 30 W 1300 0 "No sample, bottom is mud only. Seamount at SE end of Dolomite Ridge." Southern Borderland SOB 28aD 1960/03/15 1960/03/15 29 25 N 117 27.5 W 3730-3370 0 Basaltic vesicular glass and large boulders of other material (light colored mottled with brown - pyrite - metaquartzite?) Popcorn Ridge. Southern Borderland SOB 29G 1960/03/15 29 32.6 N 117 1.2 W 2580 141 Blue mud. NW extension of Cedros Deep. Southern Borderland SOB 30D 1960/03/16 1960/03/16 29 35.9 N 116 51.8 W 585 0 Vesicular basalts and some consolidated ash. Peak on mass at north end of Cedros Ridge. Southern Borderland SOB 31D 1960/03/16 1960/03/16 29 52 N 116 50.5 W 1260 0 "One shale cobble, flat with borings. Kelp Rafted? Long narrow ridge extending from Cedros Ridge." Southern Borderland SOB 31aG 1960/03/16 29 51.7 N 116 48.5 W 1270 73 "Mottled dark manganese mud. Globigerina ooze. Crest of long, narrow ridge." Southern Borderland SOB 32G 1960/03/16 30 11.6 N 117 0.8 W 2920 102 Blue mud. Southern Borderland SOB 33D 1960/03/17 1960/03/17 30 36.7 N 117 12.8 W 650-750 0 Basalt agglomerate and glass sponges for Goldberg. Probably volcanic. Southern Borderland SOB 34G 1960/03/17 30 45.2 N 117 8.6 W 1600 112 Brown olive grading to blue olive clay. Forams. Southern Borderland SOB 35G 1960/03/17 30 50.7 N 117 2.8 W 2410 114 Blue mud. Southern Borderland SOB 36G 1960/03/17 31 3.5 N 116 41.4 W 1540 74 Olive green silt. Colnett Basin. Southern Borderland SOB 37D 1960/03/17 1960/03/18 31 15 N 116 50.3 W 970 0 Sedimentary rock - positive test for phosphorite and dolomite (?). East side of ridge west of Colnett Basin. Southern Borderland SOB 38G 1960/03/18 31 49.1 N 116 59.5 W 1080 0 Ensenada Fan. 2 to 3 feet of sample (?). Southern Borderland SOB 39G 1960/08/05 28 54.5 N 117 28.5 W 3520 168 Tan mud. Guadalupe plain. Southern Borderland SOB 40G 1960/08/06 29 7 N 117 26 W 3560 10 Tan mud. Guadalupe Plain. Last Updated on 1/8/02 By pworstell@ucsd.edu