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        "mdfileid_nerc_guid":"abc9f747-53f3-0f38-e044-0003ba9b0d98",
        "cruise":"1977/12",
        "cruise_alias":"JM12/77/1",
        "restitle":"Geophysical and Sampling Survey 1977/12: Geochemical; Lizard (27/Sep/1977 to 10/10/1977)",
        "ship":"RRS John Murray",
        "client":"British Geological Survey",
        "contractor":"British Geological Survey",
        "cruise_area":null,
        "abstract":"This British Geological Survey (BGS) marine survey took place in October 1977 in the Lizard area on board the RRS John Murray. This first leg (JM12/77 survey) was to undertake natural radioactivity and neutron activation and geochemical surveys in the Western English Channel, the second leg JM12/77 survey consisted entirely of geochemical sampling in the Northern North Sea (see survey 1977/JM/2 for details of second leg). Geophysical equipment used comprised of Sidescan sonar and sparker. Seabed samples and cores were collected using ???. A geochemical eel was also used. These data are archived by BGS. BODC summary report (https://www.bodc.ac.uk/data/information_and_inventories/cruise_inventory/report/john_murray12_77.pdf). Technical details of the survey are contained in BGS Internal Report 77/15???.",
        "additional_info":"For more detailed information on the acquisition equipment and data collection techniques, operational standards, data processing methods and quality control procedures used on this survey see the Report of Survey/Cruise Report and associated documentation where available. The information available may vary depending on the age of the survey. Data are checked and loaded to the BGS Coastal and Marine data management system following BGS marine data management procedures.",
        "nav_equip_type":"Not Available",
        "geophys_equip_type":"Sidescan Sonar, Sparker",
        "samp_equip_type":"Corer: Rock Gravity",
        "start_date":"1977-09-27T00:00:00",
        "start_date_est":"Estimated",
        "end_date":"1977-10-10T00:00:00",
        "end_date_est":"Estimated",
        "confidentiality":"unclassified (open file)",
        "accessuse_restric":"unrestricted use, copyright acknowledgement",
        "terms_of_use":"Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced British Geological Survey materials \"Contains British Geological Survey materials \u00a9UKRI [year]\"",
        "terms_of_use_url":"http://nationalarchives.gov.uk/doc/open-government-licence/version/3/",
        "cruise_data_url":null
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