Fichier de la Lithotheque Nationale d'Echantillons Marins README file NGDC Data Set # 0000 obtained from: U.S. Department of Commerce National Environmental Satellite, Data, and Information Service National Oceanic and Atmospheric Administration U.S. National Geophysical Data Center (NGDC) (http://www.ngdc.noaa.gov/mgg/mggd.html) & co-located World Data Center for Marine Geology & Geophysics, Boulder _______________________________________________________________________ NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THESE DATA _______________________________________________________________________ CONTRIBUTORS: Bureau de Recherches Geologiques et Minieres, France NAME OF DATA SET: BRGM Core Descriptions LAST UPDATE: April, 1985 GEOGRAPHIC REGION: Global DATA VOLUME: 4.03 mbytes MGG IDENTIFIER: 67995002 LIST OF FILES brgm.txt, and README (this file) SUMMARY In 1975 the BRGM and CNEXO in France joined to create a national marine geological sampling center at the Centre Oceanologique de Bretagne in Brest. This center collects and stores samples of the sea bottom and subbottom from all over the world and makes them available to any person or institution interested in their study. A French national scientific commission defined the rules for collecting operating and using this facility. The commission consists of the representatives of the Ministry of Industry, industrial and oil firms, the main sea ports and Universities as well as of BRGM and CNEXO, which preside in turn every two years over the commission. BRGM is in charge of the management of the Center. Not only geological samples but also related data are stored such as geographical location, depth, weight and number or level, related studies, if any, etc. (the list of published studies is included). The samples and related data are identified by computer cards and are stored in computer files. After verification they are transferred to a data bank which integrates information from the lithotheque, phototheque and data collections for more complete processing. Institutions and persons interested in the cores may request the catalog of the already processed samples or may receive portions of samples for study following approval by the Commission. A copy of the lithotheque was transmitted to the WDC-A for Marine Geology and Geophysics for distribution in 1985. More current information is available from BRGM. The data at the WDC-A (NGDC) include descriptions of approximately 25,000 samples. BRGM contacts are as follows: either: Marine Geology Department or Mr. P. Guennoc of the BRGM Responsable de l'Antenne BRGM B.P. 6009 Centre de Brest de l'IFREMER 45060 ORLEANS CEDEX - France B.P. 337 29273 BREST CEDEX - France phone: 98-45.80.55 telex: 940627 F AVAILABILITY Data are available for download from this server at no charge, data are also available in other formats. NGDC/WDC-A MGG Technical Contact: Carla Moore NOAA/NGDC E/GC3 325 Broadway Boulder, CO 80305 USA phone: 303-497-6339 fax: 303-497-6513 email: Carla.J.Moore@noaa.gov DOCUMENTATION RECEIVED FROM BRGM LITHOTHEQUE NATIONALE d'ECHANTILLONS MARINS (Fichier Iventaire) Card type 1: column length contents ------ ------ ----------------------------------------------------------- 1 4 code carte (card type) "COL1" 5 8 numero de croisiere BNDO (cruise number) 13 4 numero consecutif (consecutive number) 17 8 17=blank, 18="B", numero chronologique (sample/subsample) 25 2 Jour (day) 27 2 Mois (month) 29 4 Annee (year) 33 12 numero d'Origine (originator's number?) ________________ 45 1 bloc(block?) | 46 2 meuble(cabinet?)| 48 1 travee(interval?) numero de classement 49 2 niveau(level?) | (classification number?) ________________| 51 10 nom de croisiere (cruise name) 61 8 nature de l'echantillon (type of sample) 69 8 etudes realisees (studies done) ________________ 77 2 stock | 79 1 theme | etat (availability) 80 1 S/C/A/M | ________________| Card type 2: column length contents ------ ------ ----------------------------------------------------------- 1 4 code carte (card type) "COL2" 5 8 numero de croisiere (cruise number) 13 8 17=blank, 18="B", numero chronologique (sample/subsample) 21 4 profondeur (depth) 25 6 longueur du sondage en cm ou Poids total preleve (sample length cm or weight in pounds total dredge haul?) 31 6 longueur de l'echantillon en cm ou nombre total preleve (length in cm of sediment or total number of rocks?) _______________________________________ 37 6 tete ou poids en lithotheque | (depth to top or wt in lbs of sample)| 43 6 pieds ou nombre en lithotheque | depth in cm (depth to bottom or # of samples) | _______________________________________| 49 2 degrees latitude 51 2 minutes latitude 53 2 tenths/hundredths of minutes latitude 55 1 N or S for North or South latitude 56 3 degrees longitude 59 2 minutes longitude 61 2 tenths/hundredths of minutes longitude 63 1 E or W for East or West longitude 64 17 proprietaire de L'echantillon (sample owner/facility) explanation of fields: numero chrono chronological number given when the sample is entered in the lithotheque. A sample can be for example a section of a core or a part of dredged material ("sub-sample"). Ref. BNDO Number of the core or of the total dredged material. Date archivage Date of the archives. Numero original Name of the cruise. Numero LINEM Internal reference number in the lithotheque. Nature Echant. Nature of the sample (for codes, see annex 7 (1) and annex 6). Etudes Types of anlyses realized on the sample. (for codes, see annex 7 (2)). Stock Amount (number) of "sub-samples". Theme The main geological subjects. (for codes see annex 7 (4)). Etat Availability. (for codes see annex 7 (4)). Prof Depth. Long./Poids Total Total length of the sample (in cm)/ or total weight of the sample. Long/Nombre echant Total length of the sample (in cm)/ or total number of the collected samples. Cote tete/Poids Depth (in cm) of the top of the sample or /weight of the sample in the lithotheque. Cote pied/Nombre Depth (in cm) of the bottom of the sample or /number of samples. Latitude Latitude Longitude Longitude Annexe 6: Nature geologique de l'echantillon, lexique des codes utilises Code signification (meaning) ---- ---------------------------------------------------------------------- S roche sedimentaire (sedimentary rock) code meaning ---- --------------------------------------- 1 cosolidee (consolidated) 2 meuble (loose?) A detritique (detrital) B siliceuse (siliceous) C carbonatee (carbonate) D saline, phosphatee, ferrifere... (other) examples: rock corresponding symbol ---- -------------------- GRES S1A DIATOMITE S1B CALCAIRE S1C GYPSE, SELS, etc. S1D E roche eruptive (igneous rock) code meaning ---- ----------------------------------------- 1 texture granue (coarse-grained) 2 texture microgrenue ou porphyrique (fine grained/porphrytic) 3 texture microlitique ou vitreuse (microgranular/vitreous) A leucocrate mineraux fonces < 1/3 B mesocrate 1/3 < mineraux fonces < 2/3 C melanocrate minerzux fonces > 2/3 examples: rock corresponding symbol ---- -------------------- GRANITE E1A GABBRO E1B SERPENTINE E1C BASALTE E3C M roche metamorphique (metamorphic rock) code meaning ---- ---------------------------------------- 1 quartzifere (quartz-bearing) 2 sans quartz (without quartz) examples: rock corresponding symbol ---- -------------------- GNEISS M1 AMPHIBOLITE M2 Annexe 7: lexique des codes lithotheque, liste du repertoire (1) nature echantillon (description) code meaning ---- ------------------------------ A courant (dredge/underway sample?) B carottes (core) C cuttings D plaque mince (thin section) E surface polie (polished surface) F cellule (cell?) G scorie (scoria?) H minerai fondu (ore?) I concentre (concentrate?) J prehistorique (prehistoric) K fossile (fossil) L broyage (crushed sample?) M tamisat (sieved sample?) R reserve disponible (available reserve) (2) objet etudes (studies) code meaning ---- ------------------------------ A analyse chimique (chemical anlysis) B calcimetrie (carbonate) C microfacies (microstratigraphy) D micropaleontologie (micropaleontology) E etude mineralogique (mineralogy) F palynologie (palynology) G paleontologie (paleontology) H bibliographie (bibliographic reference?) I geochimie (geochemistry) J geotechnique (engineering properties) K magnetisme (magnetism) L petrographie (petrography) M radiographie (x-radiography??) N granulometrie (grain size) O gammadensimetrie (gamma density) P sedimentologie (sedimentology) Q mesures de radioactivite (radioactivity) R geochronologie (geologic age) S photographie (photography) (3) Theme (subjects) code meaning ---- ----------------------------------------- A gitologie (geology?) B materiaux (geotechnical/materials?) C mineralogie (mineralogy) D paleontologie (paleontology) E lithologie (lithology) F sedimentologie (sedimentology) (4) Etat (availability) code meaning ---- ------------------------------------------ A accessible B confidentiel (proprietary) C sorti (in processing?)