DSDP/Site Summary 3/86 =============================== = DEEP SEA DRILLING PROJECT = = SITE SUMMARY = =============================== I. INTRODUCTION The site summary file contains information on each DSDP hole including drilling methods, site location, age of the oldest sediment recovered, presence of basement, water depth, hole depth and rock descriptions. By providing rapid access to various hole data it makes a good starting point for information gathering. A well orchestrated search of the site summary file will usually narrow the scope and increase the efficiency of any searches conducted on other DSDP data sets. A. BIBLIOGRAPHY Gary, M., McAfee, R., and Wolf, C.L., eds.: Glossary of Geology, American Geological Institute, Washington, D.C., 1977 II. FORMAT AND FIELD DESCRIPTIONS B. DATA FORMAT Record size = 282 characters (originally 294, blank fields removed by NGDC) COLUMN FIELD FORMAT ====== ============================== ====== 1-2 LEG A2 3-5 SITE A3 6 HOLE A1 7 space A1 8 WELL LOGGING (L or blank) A1 9-18 LATITUDE (south are negative) F10.4 19-28 LONGITUDE (west are negative) F10.4 29-31 OCEAN A3 32 / A1 33 OCEAN HEMISPHERE (north or south) A1 34 space A1 35-40 SEA A6 41-46 PHYSIOGRAPHIC FEATURE A6 47-52 HARD ROCK FEATURE A6 53-58 TA (YYMMDD) I6 59 space A1 60-65 TD (YYMMDD) I6 66 RE-ENTRY (R or blank) A1 67 SITE SURVEY (X or blank) A1 68 SITE TERMINATION (coded) A1 69-70 CRUST (oceanic or continental) A2 71 EQUIPMENT TEST (T or blank) A1 72 HEAT FLOW (F or blank) A1 73 IN SITU PORE WATER (W or blank) A1 74 HYDRAULIC PISTON CORE (P or blank) A1 75 VARIABLE LENGTH HPC (V or blank) A1 76 PRESSURE CORE BARREL (B or blank) A1 77 PUNCH CORE (H or blank) A1 78 EXTENDED CORE BARREL (X or blank) A1 79-83 WATER DEPTH (meters) I5 84 space A1 85-89 TOTAL PENETRATION (meters) F5.0 90-94 DRILLED PENETRATION (meters) F5.0 95-99 CORED PENETRATION (meters) F5.0 100 space A1 101-104 NUMBER OF CORES RECOVERED I4 105-109 METERS RECOVERED F5.0 110-112 PERCENT RECOVERY I3 113 space A1 114-118 METERS OF HARD ROCK CORED F5.0 119-122 NUMBER OF HARD ROCK CORES I4 123-127 METERS OF HARD ROCK RECOVERED F5.0 128-132 DEPTH TO BASEMENT (meters) F5.0 133 space A1 134-138 OLDEST SEDIMENT SUB-BOTTOM DEPTH F5.0 139-143 OLDEST SEDIMENT DEPTH BELOW SEA LEVEL I5 144-147 OLDEST SEDIMENT CORE NUMBER A4 148-155 OLDEST SEDIMENT AGE CODE I8 156-215 OLDEST SEDIMENT LITHOLOGY A60 216-227 OLDEST SEDIMENT LITHOLOGY CODE I12 228-282 HARD ROCK DESCRIPTIONS AND COMMENTS A55 C. FIELD DESCRIPTIONS The definition of leg, site and hole may be found in the explanatory notes. In addition, the special core designations, as well as the methods of sample labeling and calculating absolute sample depths are discussed. WELL LOGGING: L = Well logging was done: otherwise the field is blank. (includes analog data not on the CD-ROM VOL II disc) LATITUDE: Decimal value latitude were negative(-) indicates south. LONGITUDE: Decimal value longitude were negative(-) indicates west. OCEAN: ANT = Antarctic ATL = Atlantic IND = Indian PAC = Pacific OCEAN HEMISPHERE: N = North, S = South SEA: AEGEAN = AEGEAN ARAB = ARAB BERING = BERING BLACK = BLACK CARIB = CARIBBEAN CORAL = CORAL GADEN = GULF OF ADEN GCALIF = GULF OF CALIFORNIA GMEX = GULF OF MEXICO GREENL = GREENLAND JAPAN = JAPAN MED = MEDITERRANEAN NORWEG = NORWEGIAN PHIL = PHILIPPINE REDSEA = RED SEA ROSS = ROSS TASMAN = TASMAN PHYSIOGRAPHIC FEATURE: AB FLR = Abyssal floor: Pertaining to ocean environment of 500 fathoms or deeper. BANK = Bank: A relatively flat-topped elevation of the sea at shallow depth (generally less than 200m) typically on the continental shelf or near an island. BASIN = Basin: A more or less equidimensional depression of the sea floor. BENCH = Bench: Strip of relatively level rock or earth raised and narrow. C RISE = Continental rise: (also found in data as RISE) That part of the continental margin that is between the continental slope and the abyssal plain, except in areas of oceanic trench. CANYON = Canyon (submarine): A steep-sided, V-profile trench or valley winding along the continental shelf or continental slope, having tributaries and resembling unglaciated, river-cut land canyons. CHANNL = Channel: A liner current mark, larger than a groove, produced on a sedimentary surface, parallel to the current. CNT SL = Continental slope: That part of the continental margin that is between the continental shelf and the continental rise (or oceanic trench). CONE = Cone: A submarine fan (see FAN). Crest = Crest: A line that connects the highest points or culminations of a fold. DIAPIR = Diapir: A dome or anticline fold, the overlying rocks of which have been ruptured by the squeezing out of the plastic core material. ESCARP = Escarpment: A long, more or less continuous cliff or relatively steep slope facing in one general direction, breaking the general continuity of the land by separating 2 level or gently sloping surfaces, and produced by erosion or by faulting. FAN = Fan: A terrigenous, cone- or fan-shaped deposit located seaward of large rivers and submarine canyons (submarine cone). FLANK = Flank: The side of a fold (limb). FRACT = Fracture zone: On the deep-sea floor, an elongate zone of unusually irregular topography that often separates regions of different depths, often crosses and apparently displaces the mid-oceanic ridge by faulting. GAP = Gap (Abyssal gap): A passage that connects two abyssal plains of different levels, through which clastic sediments are transported. GRABEN = Graben: An elongate, relatively depressed crustal unit or block that is bounded by faults on its long sides (trough). GUYOT = Guyot: A type of seamount that has a platform top. HILL = Hill. KNOLL = Knoll: A mound-like relief form of the seafloor, less than 1000m in height: less prominent than a seamount. MOUND = Mound. MTN = Mountain. PLAIN = Plain. PLATU = Plateau: A broad, more or less flat-topped and ill-defined elevation of the seafloor, generally over 200m in elevation. RIDGE = Ridge: An elongate, steep-sided elevation of the ocean floor, leaving rough topography. SCARP = Scarp: An escarpment, cliff or steep slope along a margin of a plateau, terrace or bench. SD PND = Sediment pond: A depression between 2 rising formations, filled with sediment; the filled sediment is of different geological boundaries than the surrounding physiological features. SEAMNT = Seamount: An elevation of the seafloor, 1000m or higher, either flat-topped (guyot) or peaked (seapeak). SHELF = Continental shelf: That part of the continental margin that is between the shoreline and the continental slope, characterized by its very gentle slope. SLOPE = Slope. SPUR = Spur: A subordinate ridge projecting outward from a larger submarine feature or elevation. SYNCL = Syncline: A fold, the core of which contains the stratigraphically younger rocks. TERR = Terrace: A bench-like structure on the ocean floor. TR ZON = Transition zone: A region within the upper mantle bordering the lower mantle, at a depth of 410 - 1000 km, characterized by a rapid increase in density of about 20% and an increase in seismic-wave velocity. TRENCH = Trench: A narrow elongate depression of the deep-sea floor, with steep sides. TROUGH = Trough: An elongate depression of the seafloor that is wider and shallower than a trench, with less steeply dipping sides; a trough may develop from a trench by becoming filled with sediment. VALLEY = Valley: A wide, low-relief depression of the ocean floor with gently sloping sides, as opposed to a submarine canyon. HARD ROCK FEATURE: BRECIA = Breccia: A coarse-grained clastic rock composed of large, angular, and broken rock fragments that are cemented together in a finer-grained matrix and that can be of any composition, origin or mode of accumulation. FLOW = Flow: Any rock deformation that is not instantly recoverable without permanent loss of cohesion. GRANIT = Granite: Any holocrystalline, quartz-bearing plutonic rock. LAMPRO = Lamprophyre: A group of dark-colored, porphyritic, hypabyssal hard rock rocks. PILLOW = Pillow: Observed in certain extrusive hard rock rocks, that is characterized by discontinuous pillow-shaped masses ranging in size from a few centimeters to a meter or more in diameter. SCHIST = Schist: A strongly foliated crystalline rock formed by dynamic metamorphism which can be readily split into thin flakes or slabs. SILLS = Sill: A submarine ridge or rise at a relatively shallow depth, separating a partly closed basin from another or from an adjacent sea. TA (YYMMDD): Date of arrival on site (Year/Month/Day). TD (YYMMDD): Date of departure from site (Year/Month/Day). RE-ENTRY: Designation of a re-entry hole (R) indicates that a re-entry cone was positioned at that hole and re-entry was attempted. No evaluation of successful entry nor ability to later re-enter the hole has been made in this file. However, if site termination was a result of re-entry failure, that information is recorded in SITE TERMINATION (column 68) with an "R". SITE SURVEY CODE: An X indicates that a site survey of the drilling area was done prior to the current cruise. Most likely this survey was conducted by another research ship other than the Glomar Challenger. SITE TERMINATION CODE: D = drill bit worn out H = hydrocarbon hazard I = illness or injury L = operational limit reached M = mechanical or equipment failure O = objective reached R = re-entry failure S = chief scientist decision T = time constraints W = weather CRUST: Indicates the provenance of the sedimentary rocks drilled. Unless the investigator specifies continental crust the field defaults to oceanic. This term does not indicate the parentage of the basement material. EQUIPMENT TEST: An encoded T indicates that equipment testing took place, otherwise the field is blank. Refer to the Initial Report for specifics. HEAT FLOW: An encoded F indicates that heat flow measurements were taken, otherwise the field is blank. Refer to the Initial Report for methods and results. INSITU PORE WATER: An encoded W indicates that pore water samples were taken, otherwise the field is blank. Refer to the Initial Reports for methods and results. HYDRAULIC PISTON CORE (HPC): An encoded P indicates that hydraulic piston coring took place, otherwise the field is blank. The HPC operates on the principle of a 4.5 meter core barrel which is lowered inside the drill string, hydraulically ejected into the sediment and retrieved. Since in stiff sediment the piston core was not always capable of driving itself to full extension, the drill string is lowered the amount the piston core extended into the sediment and the procedure repeated. The first HPC was taken on leg 64. VARIABLE LENGTH HPC (VLHPC): An encoded V indicates that variable-length hydraulic piston coring took place. The VLHPC operates on the same principle as the HPC except that the core barrel length is variable with a maximum reach of nine meters. The DSDP core depth data base contains information on which cores were piston cored but makes no distinction between the HPC and the VLHPC. The first VLHPC was taken on leg 85. PRESSURE CORE BARREL: An encoded B indicates that pressure core barrels were used in the hole, otherwise the field is blank. The pressure core barrel collected a reduced diameter core and was designed to maintain the in-situ hydrostatic pressure of the core. The DSDP core depth data base contains information on which cores were collected using the pressure core barrel. Cores were first collected using the pressure core barrel on leg 42. PUNCH CORE: An encoded H indicates that punch coring took place, otherwise the field is blank. Punch cores were collected by forcibly driving the pipe, without rotation, into fairly soft sediment. Punch cores have reduced diameters due to a narrow drill shoe which extended from the drill bit. Refer to the Initial Reports for specifics on which cores were collected by this method. EXTENDED CORE BARREL: An encoded X indicates that extended core barrels were used at some point in the drilling, otherwise the field is blank. With the core barrel extending beyond the bit, the system was designed to collect the core into the core barrel ahead of the drill bit. Unlike a punch core, the core was full size and collection could be done while the pipe rotated. The DSDP core depth data base contains information on which cores were collected with the extended core barrel. WATER DEPTH: The water depth measured, from sea level, by a precision depth recorder (PDR) which used hull mounted transducers for echo sounding. Determining the water depth by the "felt by drill string" method was used only when other methods were not available. TOTAL PENETRATION: Sum of drilled (or washed) penetration plus cored penetration, in meters (includes sediment and hard rock rock). DRILLED PENETRATION: Drilled penetration refers to the portion of the hole drilled, washed or punched through without continuous coring taking place. For example, if a single 9 meter "wash core" (see appendix) is recovered for 50 meters drilled, then the drilled penetration is 50 meters. The meters of cored penetration would be zero. CORED PENETRATION: The portion of the hole in meters in which coring took place. See DRILLED PENETRATION for comparison. NUMBER OF CORES RECOVERED: The total number of cores taken within the hole. METERS RECOVERED: Total meters of core recovered (sediment and hard rock). PERCENT RECOVERY: [Meters recovered / Cored penetration] X 100 METERS OF HARD ROCK CORED: The sum of all the hard rock cored, not restricted to "basement" coring. NUMBER OF HARD ROCK CORES: The number of cores in which hard rock was drilled. METERS OF HARD ROCK RECOVERED: The sum of hard rock recovered. DEPTH TO BASEMENT: The depth to basement in meters. this field is encoded only for those holes which have been designated as having reached basement. Designating whether or not basement was reached is based upon a review of the core material and the investigators interpretation. Basement was reached whenever a hole terminated in igneous or metamorphic rock and the investigator states that basement was reached. Although a hole may terminate in igneous or metamorphic rock, it will not receive a basement designation unless the investigator explicitly states that basement was reached. The term "acoustic basement" is disregarded and has no relevance in designating a hole as having reached basement. In addition, a basement designation only means that basement was attained and not that all of the hard rock recovered was cored from the basement. OLDEST SEDIMENT SUB_BOTTOM DEPTH: Depth in meters from the seafloor to the oldest sediment recovered. OLDEST SEDIMENT DEPTH BELOW SEA LEVEL: The water depth plus the sub-bottom depth to the oldest sediment recovered. OLDEST SEDIMENT CORE NUMBER: The specific core number containing the oldest sediment. Please refer to the explanatory notes regarding special core codes which may precede the core number. OLDEST SEDIMENT AGE CODE: An eight digit hierarchical age code which represents the age that has been assigned to that depth. The age code glossary is available as a separate data base. The glossary contains the numeric age codes, age names and age mnemonics used by DSDP. The numeric code is designed to provide age level information as shown below. CODE DIGIT AGE LEVEL ========== ============= 1 (1) ERA 2-3 (2) PERIOD 4 (3) SUBPERIOD 5 (4) EPOCH 6 (5) SUBEPOCH 7 (6) STAGE 8 (7) SUBSTAGE OLDEST SEDIMENT LITHOLOGY: The observed lithology of the oldest sediment recovered. OLDEST SEDIMENT LITHOLOGY CODE: The observed lithology translated into a modified SCREEN code. Where "SCREEN" refers to the name of a computer-generated lithological classification system and data base devised by the DSDP. The SCREEN data base provides lithological information to the core and interval level. This separate data set is available for general distribution. The SCREEN lithology code is devised to provide information an a sample's basic lithology, a primary component and any modifying components. A primary component code (digits5-8) is added as long as the major component represents at least half of the aggregate total of components within its class. For example, if the basic lithology was 70% siliceous then a radiolarian component of at least 35% would be needed to allow radiolarians to be encoded as the primary component. Ant other components (greater than 10%) are encoded, in order of descending amounts, as four-digit modifying component codes which will follow the primary component code. The modifying component codes are separated from the primary component codes and each other by decimal points. the modified SCREEN code which is used in this file is very similar to the code used within the SCREEN data base. Unlike the SCREEN code, the modified code allows for only a single modifying component code to be added. In addition, since the first digit of the code is always the same as the first digit of the primary component code, the first digit of the primary component code is dropped. In order to reconstitute a standard SCREEN lithology code as described above, simply repeat digit #1 between digits 4 and 5. The actual code are outlined below but an example of how these codes are used may be helpful. Consider a sample which was found to be 70% siliceous, and was 35% radiolarians. This sample may be encoded as follows: The basic lithology was described as being siliceous, transitional, monogenic and soft. From this we determine that the basic lithology code = 2211. the radiolarians make up at least 50% of the components within its class (35% of a 70% siliceous sample). The code for radiolarians (2210) may then be added to the basic code. the code now appears as follows: Standard SCREEN code = 22112210 Modified SCREEN code = 2211210 If the same sample was the found to contain both biotite (15%) and feldspar (11%) the code would contain modifying component codes. Keep in mind that the modified SCREEN code may only contain a single modifying component code. Biotite code = 3402 Feldspar code = 3320 The Standard SCREEN code = 22112210.3402.3320 The Modified SCREEN code = 2211210.3402 (only one modifier) The basic lithology code (digits 1-4) is derived as follows: Digit 1 designates : calcareous = 1 siliceous = 2 detrital = 3 Digit 2 designates : pelagic = 1 transitional = 2 terrigenous = 3 Digit 3 designates : monogenic = 1 heterogenic = 2 Digit 4 designates : soft = 1 firm = 2 hard = 3 CALCAREOUS COMPONENT CODES 1000 = ESTIMATED CARBONATE 1100 = AUTHIGENIC CARBONATE 1110 = CARBONATE 1120 = OOLITE 1130 = DOLOMITE 1140 = ARAGONITE 1200 = UNIDENT CALC FOSSIL 1210 = NANNOFOSSIL 1221 = FORAMINIFERA 1300 = PTEROPOD 1410 = LAMELLIBRANCH 1420 = CALCAREOUS SPICULE 1430 = CORAL 1440 = BRYOZOA 1450 = ALGAE 1460 = OSTRACOD 1999 = MYSTERY COMPONENT SILICEOUS COMPONENT CODES 2000 = OTHER SILICEOUS 2100 = AUTHIGENIC SILICA 2110 = CHALCEDONY 2120 = OPAL 2130 = CHERT FRAGMENT 2200 = SILICEOUS FOSSIL 2210 = RADIOLARIA 2220 = DIATOM 2230 = SILICOFLAGELLATE 2240 = OPAL PHYTOLITH 2300 = OTHER FOSSIL 2310 = SPICULE DETRITAL COMPONENT CODES 3000 = UNIDENTIFIED MATERIAL 3111 = SIDERITE 3112 = RHODOCHROSITE 3113 = FLOURITE 3151 = ANHYDRITE 3152 = GYPSUM 3153 = HALITE 3200 = PHOSPHATE 3201 = MONAZITE 3203 = COLLOPHANE 3203 = PHOSPHORITE 3250 = SULFIDE 3251 = BARITE 3311 = QUARTZ 3312 = CRISTOBALITE 3320 = FELDSPAR 3350 = ZEOLITE 3351 = ANALCITE 3400 = MICA 3402 = BIOTITE 3450 = CLAY MINERAL 3452 = MONTMORILLONITE 3453 = ILLITE 3500 = SERPENTINE 3501 = GLAUCONITE 3550 = OPAQUE MINERAL 3551 = PYRITE 3552 = IRON 3553 = LIMONITE 3554 = MAGNETITE 3555 = ILMENITE 3600 = HEAVY MINERAL 3601 = AUGITE 3604 = RUTILE 3605 = ZIRCON 3606 = TOURMALINE 3607 = GARNET 3608 = APATITE 3609 = STAUROLITE 3611 = KYANITE 3612 = EPIDOTE 3613 = HORNBLENDE 3614 = AMPHIBOLE 3615 = TOPAZ 3616 = SPHENE 3617 = ZOISITE 3620 = SILLIMANITE 3621 = HYPERSTHENE 3622 = DIOPSIDE 3623 = TREMOLITE 3625 = PYROXENE 3626 = GLAUCOPHANE 3627 = SPINEL 3628 = SPHALERITE 3629 = ANATASE 3634 = OLIVINE 3651 = GLASS 3652 = PALAGONITE 3700 = VOLC MATERIAL FRAG 3705 = VOLCANIC CLAY 3710 = BASALT 3711 = PUMICE 3712 = SCORIA 3751 = MANGANESE 3752 = ISOTROPIC SILVER 3753 = MOLYDENUM 3754 = MAGNESIUM 3800 = ROCK FRAGMENT 3850 = ORGANIC DEBRIS 3851 = PLANT DEBRIS 3852 = FISH DEBRIS 3870 = CHITANOZOA 3871 = FECAL PELLET 3872 = CARBON FRAGMENT 3901 = LIMNIC 3902 = AUTHIGENIC CRYSTAL 3903 = MESOSTASIS 3903 = OPAQUE MESOSTASIS 3904 = MICROGRANULAR AGGREGATE 3905 = MICROPHENOCRYST 3906 = ISOTROPIC MINERAL 3907 = SPHERULITE 3908 = TERRIGENOUS DETRITUS 3909 = ALTERITE 3910 = MICRONODULE 3911 = DETRITAL MATERIAL 3912 = DETRITAL MINERAL 3915 = AMORPHOUS OXIDE HARD ROCK DESCRIPTIONS AND COMMENTS: The observed hard rock core descriptions. This field is also used to comment on any unusual procedures or tests that went on while drilling the hole. NGDC NOTE: The following lithology codes were found which are not included on the list above: 1001 1103 1111 2111 2221 3100 3110 3122 3300 3510 3900 4500 NGDC NOTES: (list of deviations from field descriptions) Description of deviation Record Number(s) ======================================= ================ Decimal found in total penetration: 1,9,30,32,34,36-37,39-40,74- col 85-89 - field has one or two 75,77,79,82,89,97,99,101,104- points of precision after the decimal 105,132,137-138,140,142,146- 148,150-151,162,196,202,285, 289,338-339,342-355,359-361, 363,366,368-437,449-450,452, 456,467,470,472-473,481,483, 487,495,497,500-502,518,527, 531,536,543,545,550,553,555, 561,563-564,569,571,573,576, 584,587,594,603,607,609,612, 616,664,673,675-676,684,689, 693,697,708,715,724,731,748, 752,767,773,775,783,787,799, 803,821,824,854-855,867,869, 874,876-877,880,882,886,891- 892,895,903,905-907,912,916, 918,923,928,934-935,944,952, 957,966-967,972-974,977,980, 984,988-989,992-993,1013-1014, 1017-1021,1023-1024,1026-1028, 1030-1031,1041-1042,1049-1051, 1053,1056-1058,1060,1067-1069, 1071-1072,1075,1079-1081,1084, 1086,1091,1094-1095,1098-1100, 1102,1105,1109 Cored and drilled penetration does not 31,33,103,119,145,149,179,188, equal total - this list does not 195,282,287,290,321,438,443, include any records which contain 539,581,589-590,610,623,628, decimals in the three penetration 670,700,792,1048 fields Decimal found in oldest sediment 1-10,12-18,21-45,47-48,50-60, subbottom depth :col 134-138 - 62-69,71,73-77,79-92,95-121, field contains one or two points 123-134,136-167,169-177,180- of precision after the decimal 233,237-239,241-272,274-278, 280-294,297-303,306,308-310, 312-314,316-318,321-326,328- 333,335-338,340-350,352-355, 359-369,371-377,379-399,401- 414,416-445,447-454,456,458- 474,476-485,487-507,510-528, 530-533,535-543,545,547,549- 551,553-555,557-558,561-571, 573-579,581-587,589-592,594- 600,602-605,607-621,623-624, 626,628,630-631,633-635,637, 639-640,642-654,656-657,659- 677,679-680,683-715,717-728, 730-737,739-746,748-758,760- 761,763-792,795-808,810,814, 816-818,828,830,832,834,840, 842,845-856,862-888,890-893, 895-898,900-907,910-912,914- 920,922-923,925-929,931-950, 952-1004,1009-1032,1040-1041, 1043-1044,1046,1048-1049, 1051-1053,1055-1059,1062- 1088,1091-1095,1097-1112 Decimal found in meters recovered: 5-7,10-13,17-18,21,34,36,42- col 105-109 - field contains one or 43,45-46,52,54,69-70,73-76,79, two points of precision after the 81,83,85,90,96,98-103,106-107, decimal 119-120,122,127,129,135-136, 138-139,141,154,156,180-181, 191,195,197,203,206,208-210, 212-214,216,218-222,229,233, 257,267,269,274,279,281,285, 292,299,305,313,319,321-323, 325-326,328-329,331-355,359- 437,459,461,471,477,495,499, 509,534,575,580,582,585,587, 589,591-592,598,604-605,608, 622,626,630-631,633,635,644, 653,659,661,663-665,678,688- 689,698,715,720-721,738,743, 748,770,779,781,788,793-794, 796,803,807,811-812,821-824, 826-827,836-837,848,852,857- 858,867,877,880,882,888,891- 892,898,903,905-906,916,922, 935,942,946,954,956-957,964, 974,985,999,1005,1014,1033, 1041-1042,1049,1051,1055- 1058,1064,1084,1088-1089, 1105,1109 Decimal found in meters of hard rock 15-16,18,26-28,30-33,35,37, cored: col 114-118 - field contains 43,57,59,62-63,65,67,91,96- one or two points of precision after 97,108,110,117,133,135,140, the decimal 142-143,145,147-148,150,152, 192,195,220,251-252,271,277- 279,336,341-342,349-350,352- 353,364,366,368,371-372,374- 377,382,386-387,389,391,393- 394,396-397,401-403,406,408- 410,412,416,421,428,430-431, 433-434,576,578-579,617-618, 626,738,766,794,810,816,826, 850,864,954,971,990,1005,1036, 1040-1042,1046,1070 Decimal found in meters of hard rock 15-16,18,26-28,30-33,35,37, recovered: col 123-127 - field 43,57,59,62-63,65,67,91,96- contains one or two points of 97,108,110,117,133,135,140, precision after the decimal 142-143,145,147-148,150,152, 170,184,187,192-193,216,218- 222,224-225,230,241,251-253, 256,258,260-262,264-266,268, 270-271,273,275,277-280,287, 293,303,331,336-338,340-342, 349-350,352-364,366,368,371- 372,374-376,382,386-387,389, 391,393-394,396-397,401-403, 406,408-410,412,416,421,425, 428,430-431,433-434,453,489, 491,510,552,576-579,617,620- 622,624,626,647-648,651-654, 657,670,690,702-703,711-712, 719,725,738,744,760,766,780, 785,792-795,797,807,810-812, 816,818,822-823,826-827,836, 845,850,861,864,866,902,917, 926,933,942,946,953-954,956, 961-962,968,971,975,990,1005, 1034,1036,1040-1042,1046, 1048,1055,1070 Decimal found in cored penetration: 10,17,34,36,46,74-75,78-79,81, col 95-99 - field contains one or 83,90,98-99,102,135-136,138, two points of precision after the 141,156,162,213,219-220,279, decimal 285,292,336,338-340,342-355, 359-437,582,585,587,592,604, 608,633,635,664,666,678,689, 715,738,743,748,779,803,821, 823-824,826-827,837,857-860, 867,877,880,891-892,898,903, 905-906,916,922,935,974,985, 1033,1038,1041-1042,1049, 1051,1056-1058,1084,1088- 1089,1105,1109 Decimal found in drilled penetration: 36,44,77,82,84,105,125,131- col 90-94 - field contains one or 132,137,140,146,148,151,339- two points of precision after the 340,342-353,359-362,366,368- decimal 371,373,375-389,391-400,402- 403,405-415,417-418,420,422- 426,428,430,432-433,435,437, 449,536,569,584,623,743,858, 928,977,1050 Non-numeric oldest sediment lithology 1043 code: col 216-227 Undocumented litholgy codes scattered throughout file (see field description above) DSDP Site Summary 3/86