Data

Exploring for the Future - Rock-Eval pyrolysis data from kerogens of NDI Carrara 1, South Nicholson region, Australia. Destructive Analysis Report

Geoscience Australia
Grosjean, E. ; Boreham, C.J. ; Butcher, G. ; Jarrett, A. ; Long, I. ; Jinadasa, N. ; Webster, T. ; Hong, Z.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/146766&rft.title=Exploring for the Future - Rock-Eval pyrolysis data from kerogens of NDI Carrara 1, South Nicholson region, Australia. Destructive Analysis Report&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/146766&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=NDI Carrara 1 is a deep stratigraphic drill hole completed in 2020 as part of the MinEx CRC National Drilling Initiative (NDI) in collaboration with Geoscience Australia and the Northern Territory Geological Survey. It is the first stratigraphic test of the Carrara Sub-basin, a depocentre newly discovered in the South Nicholson region based on interpretation from seismic surveys (L210 in 2017 and L212 in 2019) acquired as part of the Exploring for the Future program. The drill hole intersected approximately 1120 m of Proterozoic sedimentary rocks unconformably overlain by 630 m of Georgina Basin carbonates. Geoscience Australia has undertaken a range of investigations on the lithology, stratigraphy and geotechnical properties of NDI Carrara 1 as well as undertaking a range of analyses of about 500 physical samples recovered through the entire core. Analyses included geochronology, isotope studies, mineralogy, inorganic and organic geochemistry, petrophysics, geomechanics, thermal maturity and petroleum systems investigations.Rock-Eval pyrolysis raw data undertaken by Geoscience Australia were reported in Butcher et al. (2021) on selected rock samples to establish their total organic carbon content, hydrocarbon-generating potential and thermal maturity. Interpretation of the Rock-Eval pyrolysis data concluded that a large portion of rocks within the Proterozoic section displayed unreliable Tmax values due to poorly defined S2 peaks resulting from high thermal maturity and low hydrogen content. In order to obtain more reliable Tmax values, Rock-Eval pyrolysis of selected isolated kerogens, where organic matter is concentrated and mineral matrix effects are removed, were conducted and the resulting data are presented in this report. Maintenance and Update Frequency: asNeededStatement: Newly acquired data&rft.creator=Grosjean, E. &rft.creator=Boreham, C.J. &rft.creator=Butcher, G. &rft.creator=Jarrett, A. &rft.creator=Long, I. &rft.creator=Jinadasa, N. &rft.creator=Webster, T. &rft.creator=Hong, Z. &rft.date=2022&rft.coverage=westlimit=140.00; southlimit=-21.00; eastlimit=134.00; northlimit=-17.00&rft.coverage=westlimit=140.00; southlimit=-21.00; eastlimit=134.00; northlimit=-17.00&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=Any&rft_rights=Any&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2022&rft_rights=Australian Government Security Classification System&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security Classification System&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=EFTF – Exploring for the Future&rft_subject=Rock-Eval&rft_subject=kerogen&rft_subject=NDI Carrara 1&rft_subject=Exploration Geochemistry&rft_subject=Organic Geochemistry&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Brief description

NDI Carrara 1 is a deep stratigraphic drill hole completed in 2020 as part of the MinEx CRC National Drilling Initiative (NDI) in collaboration with Geoscience Australia and the Northern Territory Geological Survey. It is the first stratigraphic test of the Carrara Sub-basin, a depocentre newly discovered in the South Nicholson region based on interpretation from seismic surveys (L210 in 2017 and L212 in 2019) acquired as part of the Exploring for the Future program. The drill hole intersected approximately 1120 m of Proterozoic sedimentary rocks unconformably overlain by 630 m of Georgina Basin carbonates. 
Geoscience Australia has undertaken a range of investigations on the lithology, stratigraphy and geotechnical properties of NDI Carrara 1 as well as undertaking a range of analyses of about 500 physical samples recovered through the entire core. Analyses included geochronology, isotope studies, mineralogy, inorganic and organic geochemistry, petrophysics, geomechanics, thermal maturity and petroleum systems investigations.
Rock-Eval pyrolysis raw data undertaken by Geoscience Australia were reported in Butcher et al. (2021) on selected rock samples to establish their total organic carbon content, hydrocarbon-generating potential and thermal maturity. Interpretation of the Rock-Eval pyrolysis data concluded that a large portion of rocks within the Proterozoic section displayed unreliable Tmax values due to poorly defined S2 peaks resulting from high thermal maturity and low hydrogen content. In order to obtain more reliable Tmax values, Rock-Eval pyrolysis of selected isolated kerogens, where organic matter is concentrated and mineral matrix effects are removed, were conducted and the resulting data are presented in this report. 

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Maintenance and Update Frequency: asNeeded
Statement:
Newly acquired data

Notes

Purpose
Release of new laboratory data: Rock-Eval pyrolysis data of kerogens from NDI Carrara 1

Created: 29 05 2022

Issued: 20 07 2022

Data time period: 2022-02-01 to 2022-05-27

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134,-17 134,-21 140,-21 140,-17 134,-17

137,-19

text: westlimit=140.00; southlimit=-21.00; eastlimit=134.00; northlimit=-17.00

Subjects
EFTF – Exploring for the Future | Exploration Geochemistry | NDI Carrara 1 | Organic Geochemistry | Published_External | Rock-Eval | geoscientificInformation | kerogen |

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Other Information
Download the report (pdf) [1.0 MB]

uri : https://d28rz98at9flks.cloudfront.net/146766/146766_00_0.pdf

Download the results [2.3 MB]

uri : https://d28rz98at9flks.cloudfront.net/146766/146766_01_0.zip

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