Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

Offshore Ocean Resources - Geological Survey Tracklines Coastal: Maryland

Attribute Value
Click on map to inspect values
Description:
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. This includes seismic and side scan tracklines from 1985-2012. Research and processing method vary throughout the years:SeismicTracks1985- Tracklines from seismic reflection profiles - Datasonics 3. 5 kHz Ore Geopulse 280j. This work was associated with cooperative agreement 14-12-001-30316 between Maryland Geological Survey and the Bureau of Economic Geology University of Texas at Austin as agent for Branch of Geologic and Geophysical Studies Minerals Management Survice Reston, VA (Brooks, 1988) REFS: Brooks, J. R. 1988. Sieve Analyses and Heavy Mineral Concentrations of the Sand Portions of Cores Taken from the Inner Continental Shelf of Maryland. Maryland Geological Survey, Baltimore MD. SeismicTracks1987-Tracklines from seismic reflection profiles - Datasonics 3. 5 kHz Ore Geopulse 280j. REFS: Toscano, M. A. , Kerhin, R. T. , York, L. L. , Cronin, T. M. , and S. J. Williams. 1989. Quaternary Stratigraphy of the Inner Continental Shelf of Maryland. Report of Investigations #50, Maryland Geological Survey. SeismicTracks1992- Datasonics acoustic profiling system 3. 5 kHz. Processed using Calcomp 9800, large format digitizer to enter the seismic data into Autodesk s Map2000. REFS: Conkwright, R. D. , and R. A. Gast. Offshore Sand Resources in Northern Maryland Shoal Fields. Coastal and Estuarine Geology File Report #94-8SeismicTracks1993- Data was collected during an August 1993 survey, Datasonics acoustic profiling system 3. 5 kHz. the Calcomp 9800 large format digitizer was used to enter seismic data into AutoCAD 12 DOS. Civil/Survey (Softdesk) within AutoCAD was used to generate the surface models. This method used TINS (triangular irregular networks), the most commonly employed method in 1993. The data is developed and generated under the Maryland Geological Survey/Delaward Geological Survey Cooperative agreement, a grant funded by the Minerals Management Service. REFS:Conkwright R. D. , and R. A. Gast. 1994, Potential Offshore Sand Resources in Central Maryland Shoal Fields Coastal and Estuarine Geology File Report #94-9SeismicTracks1994-Datasonics acoustic profiling system 3. 5 kHz. the Calcomp 9800 large format digitizer was used to enter seismic data into AutoCAD 12 DOS. Civil/Survey (Softdesk) within AutoCAD was used to generate the surface models. This method used TINS (triangular irregular networks), the most commonly employed method in 1994. The data is developed and generated under the Maryland Geological Survey/Delaward Geological Survey Cooperative agreement, a grant funded by the Minerals Management Service. Data collected onboard the R. V. Discovery in August 1994. REFS: Conkwright R. , and Gast R. , October 1994, Potential Offshore Sand Resources in Central Maryland Shoal FieldsSeismicTracks1995- Datasonics acoustic profiling sisyem3. 5 kHz. the Calcomp 9800 large format digitizer was used to enter seismic data into AutoCAD 12 DOS. Civil/Survey (Softdesk) within AutoCAD was used to generate the surface models. This method used TINS (triangular irregular networks), the most commonly employed method in 1995. The data is developed and generated under the Maryland Geological Survey/Delaward Geological Survey Cooperative agreement, a grant funded by the Minerals Management Service. (exact dates and references for this set of tracklines cannot be found. It is known that the above listed technology was being used at the time). These are the tracklines for Charlene Shoal 1995. SeismicTracks2006- Seismic data were collected during the sidescan sonar surveys the following locations: Fenwick Shoal - 06/08/2006; Shoal A - 06/09/2006 06/12/2006; Shoal E - 06/13/2006; Great Gull Bank (Dredge Area) - 06/14/2006; Shoal R - 06/21/2006; as well as Shoals B, C, and D. Equipment: Edgetech 272 analog sidescan towfish, Furuno color LCD sounder FCV-1100L (200 khz), Knudsen 320 B/P echosounder (28 khz), Geometrics G-881 Cesium Marine Magnetometer, Edgetech SB-0512i Sub-bottom (for some of the 2006 fieldwork)R/V: KerhinSideScanTracks1993-Tracklines for two side scan surveys in 1993 between 8/5/93-8/11/93 on Fenwick Shoal and in Shoal Field 2. Fenwick shoal survey was side scan only, and Shoal Field 2 survey collected seismic and side scan data. Fenwick Shoal - 08/05/1993, (200m range, 100-150ft spacing) Equipment: Datasonics Model SBT - 220 Sub Bottom Profiler operated at frequencies of 3. 5 and 200 kHz, EPC Seismic Data Printer Model 3200S, EGG Model 260 Side Scan SONAR unit (recorder and towfish). R/V: MGS Discovery. Data collected by Lucas Strout and Stephen Bilicki. REF: Bilicki, S. R. and L. A. Strout. 1993. Potential Submerged Cultural Resources Survey. Maryland-Delaware Cooperative Offshore Sand Resource Investigations. SideScanTracks2004- The following list represents location, equipment settings and associated geoTIFFs. . Shoal B - 09/12/2004 (100m range, 100m spacing) associated GeoTIFF: ShoalB_091204; Great Gull Bank - 09/08/2004-09/12/2004, (100m range, 100m spacing) associated GeoTIFF: GreatGullBank_090804_091204; Borrow Area 2 - 09/13/2004, (50m range, 50m spacing) associated GeoTIFF: BorrowArea2_091304; Borrow Area 3 - 09/13/2004, (75m range, 100m spacing) associated GeoTIFF: BorrowArea3_091304; Equipment: Edgetech DF1000 dual-frequency sidescan towfish, Knudsen chirp seismic system. R/V: KerhinSideScanTracks2005- The following list represents location, equipment settings and associated geoTIFFs. Great Gull Bank - 05/17/2005, (100m range, 150m spacing) Associated GeoTIFF: GreatGull_051705; Borrow Area 3 - 06/14/2005, (100m range, 150m spacing) Associated GeoTIFF: BorrowArea3_061405; Weaver Shoal - 06/14/2005, (100m range, 150m spacing) Associated GeoTIFF: WeaverShoal_061405; Isle of Wight Shoal - 06/15/2005, (100m range, 150m spacing) Associated GeoTIFF: IsleOfWight_061505; Shoal C - 06/16/2005, (100m range, 150m spacing) Associated GeoTIFF: ShoalC_061605; Fenwick Shoal - 06/17/2005 and 06/21/2005 (100m range, 150m spacing) Associated GeoTIFF: Fenwick_062105; Shoal B - 06/22/2005 (100m range, 150m spacing) Associated GeoTIFF: ShoalB_062205; Equipment: Equipment: Edgetech DF1000 dual-frequency sidescan towfish, Knudsen chirp seismic system; R/V: KerhinSideScanTracks2006- The following list represents location, equipment settings and associated geoTIFFs. Fenwick Shoal - 06/08/2006, (100m range, 150m spacing) Associated GeoTIFF: Fenwick_060806; Shoal A - 06/09/2006 06/12/2006, (100m range, 150m spacing) Associated GeoTIFF: ShoalA_060906_061206; Shoal E - 06/13/2006, (100m range, 150m spacing) Associated GeoTIFF: ShoalE_061306; Great Gull Bank (Dredge Area) - 06/14/2006, (75m range, 100m spacing) Associated GeoTIFF: GreatGullDredge_061406; Shoal R - 06/21/2006, (100m range, 150m spacing) Associated GeoTIFF: ShoalR_062106; Equipment: Edgetech 272 analog sidescan towfish, Furuno color LCD sounder FCV-1100L (200 khz), Knudsen 320 B/P echosounder (28 khz), Geometrics G-881 Cesium Marine Magnetometer, Edgetech SB-0512i Sub-bottom (for some of the 2006 fieldwork) R/V: KerhinSideScanTrack2008- The following list represents location, equipment settings and associated geoTIFFs. Great Gull Bank - 06/09/08 - 06/10/08 (75m range, 100m spacing) Associated GeoTIFF: GreatGullBank_060908_061008; Charlene Shoal - 06/10/08, (75m range, 100m spacing) Associated GeoTIFF: CharleneShoal_061008; Jack Spot Reef - 06/12/08 (75m range, 100m spacing) Associated GeoTIFF: JackSpotARTREEF_061208; Jack Spot Shoal - 06/12/08 (100m range) Assocaited GeoTIFF: JackSpotSHOAL_061208; Shoals R and S - 06/16/08 (75m range, 100m spacing) Assocated GeoTIFF: ShoalsRandS_061608; Shoals R and S North - 06/17/08 - 06/19/06 (75m range, 100m spacing) Associated GeoTIFF: ShoalsRandSNORTH_061708_061908; Fenwick Shoal - 06/19/08, (75m range, 100m spacing) Associated GeoTIFF: FenwickShoalARTREEF_061908; OC Research Reef - 06/19/08 (75m range, 100m spacing) Associated GeoTIFF: OCResearchReef_061908; Bass Grounds - 06/25/08, (100m range, 150m spacing) Associated GeoTIFF: BassGroundsARTREEF_062508; Great Eastern - 06/25/08, (100m range, 150m spacing) Associated GeoTIFF: GreatEasternARTREEF_062508; Equipment: Edgetech 4200 FS sidescan towfish, Furuno color LCD sounder FCV-1100L (200 khz), Knudsen 320 B/P echosounder (28 khz), Geometrics G-881 Cesium Marine Magnetometer, R/V: Kerhin-0512. SideScanTracks2009-The following list represents location, equipment settings and associated geoTIFFs. African Queen - 09/22/2009 (75m range, 100m spacing) associated GeoTIFF: AfricanQueen_092209; Jack Spot Subway - 09/22/2009 (75m range, 100m spacing) associated GeoTIFF: JackSpotSubwayCars_092209; Bass Grounds NE - 09/23/2009, (75m range, 100m spacing) associated GeoTIFF: BassGroundsNE_092309; Isle Of Wight - 09/23/2009 (75m range, 100m spacing) associated GeoTIFF: IsleofWight_092309; Research Reef - 09/23/2009 (75m range, 100m spacing) associated GeoTIFF: ResearchReef_092309; Bass Grounds South - 09/24/2009 and 10/01/2009, (75m range, 100m spacing) associated GeoTIFF: BassGroundsSouth_092409_100109; Charlene Shoal - 09/30/2009, (75m range, 100m spacing) associated GeoTIFF: Charlene_093009; Kelly's Reef - 09/30/2009, (75m range, 100m spacing) associated GeoTIFF: KellysReef_093009; Purnell's Reef - 09/30/2009, (75m range, 100m spacing) associated GeoTIFF: PurnellsReef_093009; Jack Spot Hole - 10/01/2009, (100m range, 150m spacing) associated GeoTIFF: JackSpotHole_100109; Jack Spot Ledge - 10/01/2009, (100m range, 150m spacing) associated GeoTIFF: JackSpotLedge_100109; Equipment: Edgetech 4200 FS sidescan towfish, Furuno color LCD FCV 1100L sounder (200 kHz), Edgetech 3100P subbottom (4-24 kHz) (for some of the 2009 fieldwork); R/V: KerhinSideScanTracks2011-CZM Block 1 - 06/13/2011 - 06/14/2011, (75m range, 125m spacing) Associated GeoTIFF: CZMOC_410kHz_2011; Equipment: Edgetech 4200 FS sidescan towfish; R/V: KerhinSideScanTracks2012-CZM Block 2 - 05/11/2012, (75m range, 125m spacing) Associated GeoTIFF: CZMOC_410kHz_2012; Equipment: Edgetech 4200 FS sidescan towfish; R/V: Kerhin Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey. Last updated: 12/31/2012
Publisher:
State of Maryland
Collection:
State Agencies Geospatial Data
Place:
Maryland, United States
Subject:
Oceans
Types:
Dataset and Service
Year:
2016
Contributed by:
Maryland
More details at