Support services from kalingtamil for Our Archealogical friends on Carbon dating AMS 14C analysis At Institue of Physics Bhubaneswar .
Please mail to me for coordinations in this regards
Samples are accepted from external researchers for AMS 14C analysis, for collaborative research projects in fields of paleoclimate, oceanography, archaeology, etc.
Prior to submission, researcher may contact the laboratory describing the project for which the 14C data is needed and regarding the collection and submission procedure for specific sample type.
A short research proposal needs to be submitted as 1-2 page abstract, describing the project for which the AMS 14C-dates are needed. Rather than describing the entire background of the project, the abstract should be concise, highlighting the needs of AMS 14C- dates.
The proposal will be evaluated by a panel of scientists before the samples are accepted for analysis by IOP.
Submitted proposals are reviewed once every six months. Upon acceptance of the proposal, the researcher may proceed with the sample submission.
The quantity of submitted sample should be enough to yield a minimum of ~5mg of carbon. Though for analysis only 1mg of C as graphite is required, quantity of submitted sample should be enough to accommodate for losses during pretreatment processes and replicate analyses.
Typical minimum sample weights needed for various sample types are: Carbonate rocks: ~50mg Foraminifers: ~20mg Organic samples (wood / charcoal): ~20mg Peat: 50~100mg Soil or sediments: 100~200mg (depending on C content) Seawater: 500ml Groundwater: 200~500ml (depending on DIC content) Samples can also be submitted as cryogenically purified CO2 gas in vacuum sealed Pyrex tubes (~10cm long and 1/4" OD), containing 200µmol of the gas. It is recommended to submit samples in excess of the minimum needed for analysis, to account for losses during cleaning and pretreatment and also for replicate analyses, but advisable not to exceed 10gm in any case for untreated samples.
Submitter should seek advise from the laboratory if carbon content in the sample is uncertain or for any other sample collection or pretreatment procedure.
Each sample submitted for analysis must accompany filled in and duly signed sample submission form in the prescribed format (download form from the link above), with details of principal investigator's contact information, sample type, location, nature of preservation, pretreatment (if required), carbon content (if known). Location is mandatory for marine carbonate samples.
The expected age may be given where ever possible. This will only help us to choose from a suite of check standards with wide range of 14C contents. If specific components are to be dated, they must be mentioned in the submission form. The sample submission form should be complete in all respects.
Samples can be submitted by mailing them to:
AMS Radiocarbon Laboratory (Attn.: G.V. Ravi Prasad / Koushik Dutta) Institute of Physics Sachivalaya Marg, P.O. Sainik School Bhubaneswar - 751 005 Orissa, India
S.Balasubramani B+
Historical Links Research Foundation 1386/2574 Bimatangi HB colony Phase 2 Bhubaneswar 751002 Orissa 98531 25026