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LacCore National Lacustrine Core Repository

LacCore National Lacustrine Core Repository. Anders Noren, Curator. LacCore History. Limnological Research Center (LRC): 1959 - provided many services prior to LacCore. LacCore History. Limnological Research Center (LRC): 1959 - provided many services prior to LacCore

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LacCore National Lacustrine Core Repository

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  1. LacCore National Lacustrine Core Repository Anders Noren, Curator

  2. LacCore History • Limnological Research Center (LRC): 1959 - • provided many services prior to LacCore

  3. LacCore History • Limnological Research Center (LRC): 1959 - • provided many services prior to LacCore • Repository founded at U of MN coincident with first GLAD project (2000)

  4. LacCore History • Limnological Research Center (LRC): 1959 - • provided many services prior to LacCore • Repository founded at U of MN coincident with first GLAD project (2000) • Need for core processing capacity • Equipment upgrades

  5. LacCore History • Limnological Research Center (LRC): 1959 - • provided many services prior to LacCore • Repository founded at U of MN coincident with first GLAD project (2000) • Need for core processing capacity • Equipment upgrades • Expand scope to include smaller projects (2003)

  6. LacCore History • Facilities/equipment driven by Global Lake Drilling (GLAD) program • Encourage use by other researchers • Adapt to needs of all projects at all scales • Support all phases of research

  7. Staff Curator: Anders Noren Lab Manager: Amy Myrbo Assistant Curator: Kristina Brady Technicians: 5 to 15 (unsalaried) Director: Emi Ito Co-PI: Steve Colman, Director, LLO, Duluth Co-PI: Bryan Shuman, U. Wyoming EAG: 7 members Funding: NSF-IF; University of Minnesota

  8. Components • Planning • Field • Core processing/Initial Core Description • Sample prep/Analysis • Archiving

  9. Components • PLANNING for all project phases • Budget • Time • Equipment and supplies needs • Shipping • Training • Analytical possibilities • Curation

  10. Components • PLANNING for all project phases • Submit collaborative proposals

  11. Components • Planning • FIELD • Equipment rental • Equipment training, operation • Supplies (core liner, etc.) • Core handling • Core storage • Core transport

  12. Field Equipment • Surface cores: push, gravity, freeze, Hongve, Eckman dredge • Long cores: Kullenberg, Livingstone (with or without single-use liner modification), Mackereth, Nesje, vibracorer • Vessels: 18-foot row/motorboat, 4 canoes, two Carolina Skiff boats for Kullenberg (23-foot tower), pontoon, cataraft, innertube. (All moonpooled) • GPR • Water sampling and analysis • Climate-controlled shipping container • Two 4x4 trucks

  13. Components • Planning • Field • CORE PROCESSING / ICD • Multisensor logging • gamma density • acoustic velocity • electrical resistivity • magnetic susceptibility (loop and high-resolution point sensors) • natural gamma radiation

  14. Geotek MSCL

  15. Geotek XYZ-MSCL

  16. Components • Planning • Field • CORE PROCESSING / ICD • Multisensor logging • High-resolution digital imaging

  17. DMT CoreScan Geotek GeoScan III

  18. 10 pix/mm

  19. 20 p/mm

  20. Components • Planning • Field • CORE PROCESSING / ICD • Multisensor logging • High-resolution digital imaging • Description • i. macro-scale: color, texture, structure • ii. micro-scale: mineralogical and biological components

  21. Initial Core Description

  22. Smear slides

  23. CoreWall

  24. Components • Planning • Field • Core processing/ICD • SAMPLE PREP/ANALYSIS • Dedicated stations for each analysis • Technicians available

  25. Services / Stations / Equipment • Smear slides • Sampling • LOI • Carbon coulometry • Sulfur coulometry • Biogenic silica • Grain size • Pollen prep • XRD prep • Thin section prep • Isotope prep • Diatom prep • AMS 14C prep • Charcoal prep • Centrifuges • Drying ovens • Desiccators • Fume hoods • Microscopes: pollen, diatom, petrographic, binocular ITRAX XRF core scanner X-radiography LLO

  26. Components • Planning • Field • Core processing/ICD • Sample prep/Analysis • ARCHIVING • Physical curation: storage, labeling • Metadata / database management • Sample preservation / management • Depth scale generation • Sampling

  27. Repository Policy • Accession old or new cores, given: • Adequate metadata • Known sampling history • Good condition

  28. Repository Policy • Sampling moratorium • Two years from core retrieval • Original PIs only • At conclusion: Cores available for sampling, ICD data & images made public

  29. Repository Policy • Sample requests • Core IDs, depths, spl volume • Purpose / intended research • Sampling protocol

  30. Collection • 10,400 m of core (stored at LacCore) • 8,400 m drill cores • 2,000 m short cores • Future: • 2,500 m El’gygytgyn • Accession old collections

  31. 3320 ft2 / 310 m2

  32. Virtual Repository • Store metadata / data for cores not located at LacCore • Rapid assessment of previous work done in a geographical region, or on a proxy • Possible sample access • Simplify transition to permanent storage

  33. Database Stores all metadata for expeditions, holes, cores, sections, samples; analytical data

  34. Database Stores all metadata for expeditions, holes, cores, sections, samples; analytical data Mathematically corrects depth scale for gaps and gas expansion Provides multiple uniform corrected depth scales for all samples/analyses

  35. Database Stores all metadata for expeditions, holes, cores, sections, samples; analytical data Mathematically corrects depth scale for gaps and gas expansion Provides multiple uniform corrected depth scales for all samples/analyses In-progress: Online/searchable; Corelyzer integration; ICDP Curation DIS; ??

  36. Online table, .csv, .kml

  37. Other Services • Perform multisensor logging prior to user arrival or after departure 9/1/06 – 9/1/07 MSCL: 220 days XYZ-MSCL: 175 days

  38. Other Services • Perform multisensor logging prior to user arrival or after departure • Train visitors in equipment operation, core description

  39. Other Services • Perform multisensor logging prior to user arrival or after departure • Train visitors in equipment operation, core description • Provide workshops, short courses

  40. Other Services • Perform multisensor logging prior to user arrival or after departure • Train visitors in equipment operation, core description • Provide workshops, short courses • Sell supplies (field, lab, curatorial) at cost

  41. Other Services • Perform multisensor logging prior to user arrival or after departure • Train visitors in equipment operation, core description • Provide workshops, short courses • Sell supplies (field, lab, curatorial) at cost • Produce recipes/SOPs, distribute on web

  42. Costs / Fees • field equipment rental • shipping • sample prep / analysis • sampling • supplies consumed

  43. Visitors 550-700 visitor-days annually

  44. Visitors

  45. Core Processed

  46. Samples Disbursed

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