7a4d40cb-ad06-4bb9-bd6c-74cf805e2526 English series series 2026-03-30T13:21:50 MEDIN 3.1.2 geoscientificInformation Sedimentary structure SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Geotechnics SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Pre-Construction engineering The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Renewable Energy Lease area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Hydrography GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Elevation GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Geology GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision Irish Sea and St. George's Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision soil and sediment SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision water column 2013-03-30T00:00:00 2013-04-10T00:00:00 -4.5909 -4.5645 53.4152 53.4228 TCE-1996 Marine Data Exchange 2013, Helix Canyon, Skerries, Geotechnical Site Investigation Geotechnical Site Investigation 2021-05-17T14:06:11 publication English Canyon Offshore Limited (COL) conducted this Geotechnical Site Investigation utilising the ROVDrill MK2.1 system on behalf of Marine Current Turbines (MCT), with Gardline Geosciences providing Geotechnical services and reporting, including borehole management planning. The site survey comprised seabed video and geotechnical rock coring boreholes utilising Canyon’s ROVDrill Mk2.1 Subsea drill unit with Gardline Geosciences providing Geotechnical services and reporting. There will be no limitations when published on the Marine Data Exchange otherRestrictions Data Must be used in accordance to the Marine Data Exchange's Terms of Use: https://www.marinedataexchange.co.uk/content/info/terms-of-use otherRestrictions The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk custodian Canyon Offshore Ltd. +44 (0)1224 351800 scott.couch@siemens.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Marine Current Turbines M-wright@marineturbines.com owner notPlanned Database Delimited Documents https://www.marinedataexchange.co.uk/details/TCE-1996/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08T00:00:00 publication Conformity with the Commission Regulation (EU) No 1089/2010 was either not relevant to this dataset or not a requirement of the Marine Data Exchange for the creation and submission of this dataset; therefore, conformity has not been assessed and cannot be declared False series The COL operated ROVDrill Mk2.1 is a self-contained drill rig which was remotely operated from the DP2 vessel Deep Cygnus via an umbilical. All tooling is self-contained within the ROVDrill system through its integrated racking system. The rig is deployed via the vessel’s heave compensated heavy lift crane. Canyon’s ROVDrill unit comprises a rotary drill head, ROV manipulators and sample storage racks to cater for a variety of operational requirements. The ROVDrill Mk2.1 uses NWY drill pipes, 3m in length, with optional casing to enable advancement through the borehole. Further details of the ROVDrill MK2.1 specifications and capabilites are presented in Appendix I. A total of two locations BH-SK01 and BH-SK03 were sampled within the Skerries tidal array. One retest was carried out at BH-SK01 location in an attempt to achieve a full penetration of 15.00m. Repeat tests were annotated with the suffix A. A third location was scheduled at BH-SK02, however, an ROV visual survey of the intended boring site was unable to locate suitable ROVDrill landing areas due to large rocks on seabed. This was encountered across the entire Skerries tidal array site during operations. Rock samples were acquired using the Canyon ROVDrill MK2.1 system. Cores obtained with the T2-86 Core Barrel with samples retained in plastic liners of 72mm internal diameter. Core obtained using a surface set T2-86 Core Barrel were extruded from the barrel onto a half split liner before being capped and sealed. Analysis and logging of core samples were conducted by Gardline Geosciences in a dedicated offshore laboratory. Further onshore testing is scheduled to be conducted at Gardline Geosciences Laboratory facilities in Great Yarmouth, UK. Scott Couch Marine Current Turbines Ltd Head of Site Development & Principal Resource Analyst +44 (0)117 957 7600 scott.couch@siemens.com pointOfContact EPSG Geodetic Parameter Registry 2022-12-12 revision WGS 84 / UTM zone 30N