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Villinger, Heinrich; Grevemeyer, Ingo; Kaul, Norbert; Singh, Satish C (2025): Temperature vs depth profile at heat flux station HF1760 of RV MARIA S. MERIAN cruise MSM69 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.980094, In: Villinger, H et al. (2025): Marine heat flux measurements of RV MARIA S. MERIAN cruise MSM69 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.980610

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Published: 2025-04-24 • DOI registered: 2025-05-23

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Abstract:
The heat flux measurements presented in this report were made during expedition MSM69 on the German research vessel RV Maria S. Merian (November 14, 2017 to December 22, 2017). A total of 69 heat flux measurements (profile HF1760 to profile HF1767) were successfully carried out colocated with the iLAB reflexion seismic profile. The aim of the measurements was to investigate whether low-temperature hydrothermal fluids diffuse at the seafloor where the oceanic basement is not covered by sediments. While low heat flux measurements clearly show that cold seawater enters the subsurface, no diffuse leakage of hydrothermal fluids could be detected at any location.
Keyword(s):
Eastern Equatorial Atlantic; heat flux; iLAB seismic profile
Other version:
Villinger, Heinrich: MSM69 raw data archive of HF measurements HF1760. HF1760_T_vs_Depth.zip
References:
Grevemeyer, Ingo; Singh, Satish C; Villinger, Heinrich; Papenberg, Cord; Kaul, Norbert (2019): LITHOS-iLAB - Structure and Evolution of the Oceanic Lithosphere, Cruise No. MSM69, 14.11.2017 - 22.12.2017, Mindelo/Praia (Cape Verdes) - Mindelo (Cape Verdes). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, MSM69, 62 pp, https://doi.org/10.2312/cr_msm69
Mehouachi, Fares; Singh, Satish C (2018): Water-rich sublithospheric melt channel in the equatorial Atlantic Ocean. Nature Geoscience, 11(1), 65-69, https://doi.org/10.1038/s41561-017-0034-z
Villinger, Heinrich; Tréhu, Anne M; Grevemeyer, Ingo (2010): 18. Seafloor Marine Heat Flux Measurements and Estimation of Heat Flux from Seismic Observations of Bottom Simulating Reflectors. In: Riedel, M, Willoughby, EC, Chopra, S (eds.), Geophysical Characterization of Gas Hydrates, Society of Exploration Geophysicists, 279-300, https://doi.org/10.1190/1.9781560802197.ch18
Further details:
Villinger, Heinrich; Grevemeyer, Ingo; Kaul, Norbert; Singh, Satish C (2025): Report on marine heat flux measurements made during research cruise MSM69 (LITHOS) on the German RV Maria S. Merian. MSM69_Heat_Flux_Report.pdf
Coverage:
Median Latitude: -0.865300 * Median Longitude: -3.909535 * South-bound Latitude: -0.872300 * West-bound Longitude: -3.940270 * North-bound Latitude: -0.858300 * East-bound Longitude: -3.878800
Date/Time Start: 2017-11-21T11:45:00 * Date/Time End: 2017-11-21T23:07:00
Minimum DEPTH, sediment/rock: 2.38 m * Maximum DEPTH, sediment/rock: 8.39 m
Event(s):
MSM69_6-1 (HF1760) * Latitude Start: -0.872300 * Longitude Start: -3.940270 * Latitude End: -0.858300 * Longitude End: -3.878800 * Date/Time Start: 2017-11-21T11:45:00 * Date/Time End: 2017-11-21T23:07:00 * Elevation Start: -5132.0 m * Elevation End: -5141.1 m * Campaign: MSM69 * Basis: Maria S. Merian * Method/Device: Heat-Flow probe (HF) * Comment: in the water
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Station labelStationVillinger, Heinrich
2 Sensor, numberSensor noVillinger, Heinrich
3 DEPTH, sediment/rockDepth sedmVillinger, HeinrichGeocode
4 Temperature, in rock/sedimentt°CVillinger, HeinrichHeat flow probe
5 Conductivity, thermalkW/m/KVillinger, HeinrichHeat flow probein situ
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
584 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Station		2 
Sensor no		3 
Depth sed [m]		4 
t [°C]		5 
k [W/m/K]
HF1760P0118.392.9990.94
HF1760P0128.132.9830.80
HF1760P0137.872.9590.73
HF1760P0147.612.9320.78
HF1760P0157.352.8970.86
HF1760P0167.092.8810.81
HF1760P0176.832.8530.74
HF1760P0186.572.8260.74
HF1760P0196.312.7990.74
HF1760P01106.052.7710.85
HF1760P01115.792.712
HF1760P01125.532.7180.78
HF1760P01135.272.6930.77
HF1760P01145.012.6660.89
HF1760P01154.752.6400.80
HF1760P01164.492.6200.80
HF1760P01174.232.6000.86
HF1760P01183.972.5740.80
HF1760P01193.712.5470.81
HF1760P01203.452.5180.79
HF1760P01213.192.4590.82
HF1760P0217.692.807
HF1760P0227.442.791
HF1760P0237.182.777
HF1760P0246.922.755
HF1760P0256.662.724
HF1760P0266.402.710
HF1760P0276.142.688
HF1760P0285.882.666
HF1760P0295.622.643
HF1760P02105.362.622
HF1760P02115.102.574
HF1760P02124.842.578
HF1760P02134.582.556
HF1760P02144.322.533
HF1760P02154.072.509
HF1760P02163.812.495
HF1760P02173.552.474
HF1760P02183.292.455
HF1760P02193.032.431
HF1760P02202.772.405
HF1760P02212.512.376
HF1760P0318.022.737
HF1760P0327.762.717
HF1760P0337.502.695
HF1760P0347.242.677
HF1760P0356.982.658
HF1760P0366.732.642
HF1760P0376.472.623
HF1760P0386.212.602
HF1760P0395.952.586
HF1760P03105.692.570
HF1760P03115.432.534
HF1760P03125.172.534
HF1760P03134.912.516
HF1760P03144.652.502
HF1760P03154.392.483
HF1760P03164.142.466
HF1760P03173.882.448
HF1760P03183.622.431
HF1760P03193.362.414
HF1760P03203.102.396
HF1760P03212.842.365
HF1760P0417.572.8640.78
HF1760P0427.312.8430.91
HF1760P0437.052.8210.86
HF1760P0446.792.7970.77
HF1760P0456.532.7720.77
HF1760P0466.272.7480.77
HF1760P0476.012.7240.90
HF1760P0485.752.7030.87
HF1760P0495.492.6800.76
HF1760P04105.232.6550.78
HF1760P04114.972.619
HF1760P04124.712.6170.93
HF1760P04134.452.5940.82
HF1760P04144.202.5710.84
HF1760P04153.942.5500.90
HF1760P04163.682.5280.85
HF1760P04173.422.5040.80
HF1760P04183.162.4850.89
HF1760P04192.902.4600.81
HF1760P04202.642.4250.83
HF1760P04212.382.3890.75
HF1760P0517.772.8740.80
HF1760P0527.512.8550.94
HF1760P0537.252.8340.91
HF1760P0546.992.8120.82
HF1760P0556.732.7800.79
HF1760P0566.472.7610.82
HF1760P0576.212.7340.96
HF1760P0585.952.7130.92
HF1760P0595.692.6930.81
HF1760P05105.432.6680.81
HF1760P05115.172.620
HF1760P05124.912.6230.94
HF1760P05134.652.5980.83
HF1760P05144.402.5750.89
HF1760P05154.142.5510.93
HF1760P05163.882.5330.87
HF1760P05173.622.5120.91
HF1760P05183.362.4900.92
HF1760P05193.102.4660.90
HF1760P05202.842.4390.80
HF1760P05212.582.4160.77
HF1760P0617.922.701
HF1760P0627.662.685
HF1760P0637.402.666
HF1760P0647.142.650
HF1760P0656.882.630
HF1760P0666.632.615
HF1760P0676.372.594
HF1760P0686.112.578
HF1760P0695.852.563
HF1760P06105.592.545
HF1760P06115.332.511
HF1760P06125.072.513
HF1760P06134.812.497
HF1760P06144.552.479
HF1760P06154.292.459
HF1760P06164.042.448
HF1760P06173.782.432
HF1760P06183.522.415
HF1760P06193.262.401
HF1760P06203.002.382
HF1760P06212.742.360
HF1760P0717.682.6740.76
HF1760P0727.422.6640.87
HF1760P0737.162.6460.89
HF1760P0746.902.6330.93
HF1760P0756.642.6100.79
HF1760P0766.382.5970.82
HF1760P0776.122.5790.82
HF1760P0785.862.5640.96
HF1760P0795.602.5440.86
HF1760P07105.342.5260.84
HF1760P07115.092.501
HF1760P07124.832.4970.90
HF1760P07134.572.4810.88
HF1760P07144.312.4650.83
HF1760P07154.052.4450.95
HF1760P07163.792.4300.90
HF1760P07173.532.4120.86
HF1760P07183.272.3990.88
HF1760P07193.012.3820.79
HF1760P07202.752.3620.72
HF1760P07212.492.3450.74
HF1760P0817.722.658
HF1760P0827.462.648
HF1760P0837.202.633
HF1760P0846.952.619
HF1760P0856.692.596
HF1760P0866.432.585
HF1760P0876.172.566
HF1760P0885.912.553
HF1760P0895.652.532
HF1760P08105.392.514
HF1760P08115.132.486
HF1760P08124.872.487
HF1760P08134.612.472
HF1760P08144.352.456
HF1760P08154.092.437
HF1760P08163.842.424
HF1760P08173.582.408
HF1760P08183.322.394
HF1760P08193.062.378
HF1760P08202.802.357
HF1760P08212.542.338