OCEAN DRILLING PROGRAM revised DATA FILE DOCUMENTATION July 1990 SEDIMENT / SEDIMENTARY ROCK SMEAR SLIDE / THIN SECTION DATA I. INTRODUCTION The Smear Slide/Thin Section data file contains information generated onboard the JOIDES/Resolution by the shipboard sedimentologists. Each record in the data file represents the microscopic evaluation of a small portion of sediment or sedimentary rock for its mineral and fossil content. A percent abundance is estimated for each identified component, with all percentages not totalling over 100. Each record may contain up to 20 components. Letter codes (up to 10 characters long) are used to identify the components in the data file. If you have problems or questions concerning these data, please contact: Data Librarian, Data Base Group Ocean Drilling Program Texas A&M University Research Park 1000 Discovery Drive College Station, Texas 77845-9547 U.S.A. (979) 845-8495, 845-2673 Easylink (Telex) Number: 62760290 Email: database@odpemail.tamu.edu Fax Number: 979-845-4857 II. LEGS IN THE DATA FILE The data file contains data from Legs 101 to 129. No Smear Slide/Thin Section data were collected on Legs 102, 106, or 109. III. BIBLIOGRAPHY Mazzullo, J. M. and Meyer, A. W., "Shipboard Sedimentologist Handbook", Ocean Drilling Program Technical Note, in press. IV. DATA ITEM FORMATS The following table lists the data items and their formats. For data requests other than on paper (ie. on magnetic tape), an accompanying sheet will contain any more information needed to read the data. SMEAR SLIDE / THIN SECTION ITEMS FORMAT ================================== ============= SAMPLE_CODE Text 4 LEG Integer 3 SUBLEG Text 1 SITE Integer 4 HOLE Text 1 CORE Integer 3 CORETYPE Text 1 SECTION Text 2 TOP_INTERVAL Integer 3 BOTTOM_INTERVAL Integer 3 PIECE Integer 3 SUB_PIECE Text 1 SEDIMENT_OR_ROCK_NAME Text 38 OBSERVER Text 3 SLIDE_TYPE Text 1 LITHOLOGY_TYPE Text 1 PERCENT_SAND Text 3 PERCENT_SILT Text 3 PERCENT_CLAY Text 3 COMPONENT.NAME(up to 20 names may be entered) Text 10 COMPONENT.PERCENT(up to 20 values may be entered) Text 3 REMARKS Text 200 MORE_DATA Text 1 RECORD_FLAG(up to 5 may be entered) Text 2 V. EXPLANATION OF THE SMEAR SLIDE / THIN SECTION DATA ITEMS SAMPLE_CODE - An alpha code identifying the investigator or test for which the sample was taken. No sample_code is given for smear slides. LEG - Number identifying the cruise. The Ocean Drilling Program started numbering the cruises of the JOIDES/Resolution at Leg 101. SUBLEG - Letter identifying a subleg or transit. A subleg is the continuation of a Leg in the same area with the same objectives after a port call and crew change. SITE - Number identifying the site. A site is the position of a beacon around which holes are drilled. HOLE - Letter identifying the hole. CORE - Number identifying the core. Cores are numbered serially from the top of the hole downward. CORETYPE - A letter code identifying the drill bit/coring method used to retrieve the core. The coretype codes are: B - Drill Bit C - Center Bit D - Positive Displacement H - Hydraulic Piston Core M - Miscellaneous N - Downhole Mud Motor (Navidrill) P - Pressure Core Barrel R - Rotary S - Side Wall Core W - Wash Core X - Extended Core Barrel SECTION - A core is cut into 1.5 meter long sections that are numbered serially from the top of the core. A core with full recovery will have 7 sections and a core catcher and be approximately 9.8 meters long. TOP_INTERVAL - The location of the top of a sample within a section in centimeters. BOTTOM_INTERVAL - The location of the bottom of a sample within a section in centimeters. PIECE - Number identifying a rock piece within a section. A piece is one or a group of rock fragments that can be fitted together. SUB_PIECE - Letter identifying the individual rock fragments within a piece. SEDIMENT_OR_ROCK_NAME - Name assigned to the sediment or rock by the observer at the time of the description. OBSERVER - Person describing the smear slide or thin section. A three letter code, usually the same as that persons assigned sample code, is used. SLIDE_TYPE - Letter code indicating the type of slide that was prepared. The following codes are used: S = Smear Slide T = Thin Section C = Coarse Fraction G = Grain Mount. LITHOLOGY_TYPE - One letter code that indicates whether the sediment or sedimentary rock being described is the dominant or minor lithology. The codes used are: D = Dominant M = Minor. PERCENT_SAND, PERCENT_SILT, or PERCENT_CLAY - The percent of each fraction as determined by the describer. The three together add up to less than or equal to 100%. An asterisk "*" is used to indicate trace amounts. COMPONENT.NAME - A 10 letter component code that identifies a particular component described by the observer. Each record may contain up to 20 components. Attachment A contains a complete listing of the component codes used in this file. COMPONENT.PERCENT - The percent abundance of a particular component as determined by the observer. All COMPONENT.PERCENT values together add up to less than or equal to 100%. An asterisk "*" is used to indicate trace amounts. REMARKS - Contains any comments or remarks about the smear slide or thin section and about a given component. A remarks code is used to indicate which component is being referenced. See Attachment A for a listing of the remarks codes. MORE DATA - A "Y", for yes, indicates that more information other than what is included in this file is available on the paper form for this record. RECORD_FLAG - A non-data field for ODP internal use. RECORD FORMAT ON TAPE FOR THE SMEAR SLIDE / THIN SECTION DATA SET COLUMN SMEAR SLIDE / THIN SECTION ITEMS ON TAPE ================================== ============= SAMPLE_CODE 1-4 LEG 6-8 SUBLEG 9 SITE 10-13 HOLE 14 CORE 15-17 CORETYPE 18 SECTION 19-20 TOP_INTERVAL 21-23 BOTTOM_INTERVAL 24-26 PIECE 27-29 SUB_PIECE 30 SEDIMENT_OR_ROCK_NAME 31-68 OBSERVER 69-71 SLIDE_TYPE 72 LITHOLOGY_TYPE 73 PERCENT_SAND 74-76 PERCENT_SILT 77-79 PERCENT_CLAY 80-82 COMPONENT.NAME(1) 83-92 COMPONENT.NAME(2) 93-102 COMPONENT.NAME(3) 103-112 COMPONENT.NAME(4) 113-122 COMPONENT.NAME(5) 123-132 COMPONENT.NAME(6) 133-142 COMPONENT.NAME(7) 143-152 COMPONENT.NAME(8) 153-162 COMPONENT.NAME(9) 163-172 COMPONENT.NAME(10) 173-182 COMPONENT.NAME(11) 183-192 COMPONENT.NAME(12) 193-202 COMPONENT.NAME(13) 203-212 COMPONENT.NAME(14) 213-222 COMPONENT.NAME(15) 223-232 COMPONENT.NAME(16) 233-242 COMPONENT.NAME(17) 243-252 COMPONENT.NAME(18) 253-262 COMPONENT.NAME(19) 263-272 COMPONENT.NAME(20) 273-282 COMPONENT.PERCENT(1) 283-285 COMPONENT.PERCENT(2) 286-288 COMPONENT.PERCENT(3) 289-291 COMPONENT.PERCENT(4) 292-294 COMPONENT.PERCENT(5) 295-297 COMPONENT.PERCENT(6) 298-300 COMPONENT.PERCENT(7) 301-303 COMPONENT.PERCENT(8) 304-306 COMPONENT.PERCENT(9) 307-309 COMPONENT.PERCENT(10) 310-312 COMPONENT.PERCENT(11) 313-315 COMPONENT.PERCENT(12) 316-318 COMPONENT.PERCENT(13) 319-321 COMPONENT.PERCENT(14) 322-324 COMPONENT.PERCENT(15) 325-327 COMPONENT.PERCENT(16) 328-330 COMPONENT.PERCENT(17) 331-333 COMPONENT.PERCENT(18) 334-336 COMPONENT.PERCENT(19) 337-339 COMPONENT.PERCENT(20) 340-342 REMARKS 343-542 MORE_DATA 543 RECORD_FLAG(1) 544-545 RECORD_FLAG(2) 546-547 RECORD_FLAG(3) 548-549 RECORD_FLAG(4) 550-551 RECORD_FLAG(5) 552-553