LacCore National Lacustrine Core Repository Anders Noren, Curator

LacCore History Limnological Research Center (LRC): provided many services prior to LacCore

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

LacCore History Limnological Research Center (LRC): 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

LacCore History Limnological Research Center (LRC): 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)

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

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

Components 1. Planning 2. Field 3. Core processing/Initial Core Description 4. Sample prep/Analysis 5. Archiving

Components 1. PLANNING for all project phases a. Budget b. Time c. Equipment and supplies needs d. Shipping e. Training f. Analytical possibilities g. Curation

Components 1. PLANNING for all project phases Submit collaborative proposals

Components 1. Planning 2. FIELD a. Equipment rental b. Equipment training, operation c. Supplies (core liner, etc.) d. Core handling e. Core storage f. Core transport

Field Equipment 1.Surface cores: push, gravity, freeze, Hongve, Eckman dredge 2.Long cores: Kullenberg, Livingstone (with or without single-use liner modification), Mackereth, Nesje, vibracorer 3.Vessels: 18-foot row/motorboat, 4 canoes, two Carolina Skiff boats for Kullenberg (23-foot tower), pontoon, cataraft, innertube. (All moonpooled) 4.GPR 5.Water sampling and analysis 6.Climate-controlled shipping container 7.Two 4x4 trucks

Components 1. Planning 2. Field 3. CORE PROCESSING / ICD a. Multisensor logging i. gamma density ii. acoustic velocity iii. electrical resistivity iv. magnetic susceptibility (loop and high-resolution point sensors) v. natural gamma radiation

Geotek MSCL

Geotek XYZ-MSCL

Components 1. Planning 2. Field 3. CORE PROCESSING / ICD a. Multisensor logging b. High-resolution digital imaging

DMT CoreScan Geotek GeoScan III

10 pix/mm

20 p/mm

Components 1. Planning 2. Field 3. CORE PROCESSING / ICD a. Multisensor logging b. High-resolution digital imaging c. Description i. macro-scale: color, texture, structure ii. micro-scale: mineralogical and biological components

Initial Core Description

Smear slides

CoreWall

Components 1. Planning 2. Field 3. Core processing/ICD 4. SAMPLE PREP/ANALYSIS a.Dedicated stations for each analysis b.Technicians available

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

Components 1. Planning 2. Field 3. Core processing/ICD 4. Sample prep/Analysis 5. ARCHIVING a. Physical curation: storage, labeling b. Metadata / database management c. Sample preservation / management d. Depth scale generation e. Sampling

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

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

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

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

3320 ft 2 / 310 m 2

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

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

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

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; ??

Online table,.csv,.kml

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

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

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

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

Visitors visitor-days annually

Visitors

Core Processed

Samples Disbursed