LacCore National Lacustrine Core Repository

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

25. CoreWall

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

27. 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

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

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

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

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

32. 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

33. 3320 ft2 / 310 m2

34. 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

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

36. 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

37. 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; ??

38. Online table, .csv, .kml

39. 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

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

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

42. 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

43. 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

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

45. Visitors 550-700 visitor-days annually

46. Visitors

47. Core Processed

48. Samples Disbursed