Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Böttcher, Michael Ernst; Brumsack, Hans-Jürgen (2026): Iron and sulfur geochemistry of deep biosphere sediments from ODP Leg 207 site 1258 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993268 (DOI registration in progress), In: Böttcher, ME; Brumsack, H-J (2026): Iron and sulfur geochemistry of deep biosphere sediments from ODP Leg 207, Demerara Rise, southern North Atlantic [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993242 (DOI registration in progress)

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2026-03-27

RIS CitationBibTeX Citation ShareShow MapGoogle Earth

Abstract:
The iron and sulfur geochemistry was investigated on squeeze cake samples retrieved from deep biosphere sediments during ODP Leg, Demerara Rise, southern North Atlantic. Vertical profiles from 5 sites were analyzed using different chemical extraction methods followed by spectrophotometric geochemical analyses and organic sulfur using elemental analysis, to understand the carbon-iron-sulfur interactions during and black shale formation and upon diagenesis in the times after.
Keyword(s):
black shale; deep biosphere; Demerara Rise; iron content; iron species; ODP 207; organic sulfur; sulfur content; Sulfur species
Related to:
Böttcher, Michael Ernst; Hetzel, Almut; Brumsack, Hans-Jürgen; Schipper, Andrea (2006): Sulfur-iron-carbon geochemistry in sediments of the Demerara Rise. In: Mosher, DC, Erbacher, J, Malone, MJ (eds.), Proceedings of the Ocean Drilling Program, 207 Scientific Results, Proceedings of the Ocean Drilling Program, 207, Ocean Drilling Program, https://doi.org/10.2973/odp.proc.sr.207.108.2006
Hetzel, Almut; Böttcher, Michael Ernst; Wortmann, Ulrich G; Brumsack, Hans-Jürgen (2009): Paleo-redox conditions during OAE 2 reflected in Demerara Rise sediment geochemistry (ODP Leg 207). Palaeogeography, Palaeoclimatology, Palaeoecology, 273(3-4), 302-328, https://doi.org/10.1016/j.palaeo.2008.11.005
Project(s):
International Ocean Drilling Programme (IODP3)
Funding:
German Research Foundation (DFG), grant/award no. BO 1584/2: Infrastructure Priority Programme “International Ocean Drilling Programme (IODP³)” (SPP 527)
German Research Foundation (DFG), grant/award no. BR 775/16: Infrastructure Priority Programme “International Ocean Drilling Programme (IODP³)” (SPP 527)
German Research Foundation (DFG), grant/award no. BR 775/17: Infrastructure Priority Programme “International Ocean Drilling Programme (IODP³)” (SPP 527)
Coverage:
Median Latitude: 9.433330 * Median Longitude: -54.733033 * South-bound Latitude: 9.433330 * West-bound Longitude: -54.733310 * North-bound Latitude: 9.433330 * East-bound Longitude: -54.732760
Date/Time Start: 2003-01-22T18:15:00 * Date/Time End: 2003-10-28T10:10:00
Minimum DEPTH, sediment/rock: 1.45 m * Maximum DEPTH, sediment/rock: 483.55 m
Event(s):
207-1258A  * Latitude: 9.433330 * Longitude: -54.733310 * Date/Time Start: 2003-01-22T18:15:00 * Date/Time End: 2003-01-25T10:10:00 * Elevation: -3192.2 m * Penetration: 447.5 m * Recovery: 375.46 m * Location: North Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 447.5 m cored; 0 m drilled; 83.9 % recovery
207-1258B  * Latitude: 9.433330 * Longitude: -54.733030 * Date/Time Start: 2003-01-25T10:10:00 * Date/Time End: 2003-10-28T10:10:00 * Elevation: -3192.2 m * Penetration: 460.9 m * Recovery: 346.13 m * Location: North Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 57 cores; 453.9 m cored; 7 m drilled; 76.3 % recovery
207-1258C  * Latitude: 9.433330 * Longitude: -54.732760 * Date/Time Start: 2003-01-28T10:10:00 * Date/Time End: 2003-02-01T07:50:00 * Elevation: -3192.2 m * Penetration: 485 m * Recovery: 161.08 m * Location: North Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 34 cores; 215.2 m cored; 269.8 m drilled; 74.9 % recovery
Comment:
The data file contains detailed analytical results on the iron and sulfur geochemistry that was investigated on squeeze cake samples retrieved from deep biosphere sediments during ODP Leg 207, Demerara Rise, southern North Atlantic. Vertical profiles from 5 sites were analyzed using different chemical extraction methods followed by spectrophotometric geochemical analyses, and organic sulfur using elemental analysis, to understand the carbon-iron-sulfur interactions during Cretaceous black shale formation and upon diagenesis in the times after.
Squeeze cake samples were taken after pore water retrival and kept frozen and anaerobic until freeze-drying in home laboratory
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventBöttcher, Michael Ernst
2 Date/Time of eventDate/TimeBöttcher, Michael Ernst
3 Latitude of eventLatitudeBöttcher, Michael Ernst
4 Longitude of eventLongitudeBöttcher, Michael Ernst
5 Sample code/labelSample labelBöttcher, Michael Ernst
6 UnitUnitBöttcher, Michael Ernst
7 Depth, compositeDepth compmcdBöttcher, Michael Ernst
8 DEPTH, sediment/rockDepth sedmBöttcher, Michael ErnstGeocode – mbsf
9 Iron, dithionite extractableFeD%Böttcher, Michael ErnstSpectrophotometry after room temperature dithionite extractiondwt.
10 Iron, hydrochloric acid solubleFe HCl acid solublemg/kgBöttcher, Michael ErnstSpectrophotometry after room temperature 0.5 M HCl extraction
11 Sulfur, total reduced inorganicTRIS%Böttcher, Michael ErnstSpectrophotometric methoddwt.; TRIS = AVS + CrS(II)
12 Chromium reducible sulfurCRS%Böttcher, Michael ErnstSpectrophotometric methoddwt.; chromium(II) reducible inorganic sulfur; essentially pyrite
13 Acid volatile sulfidesAVSmg/kgBöttcher, Michael ErnstSpectrophotometric method
14 Sulfur, organicS org%Böttcher, Michael ErnstElemental Analyser, Fisondwt.; Kerogen-bond-organic sulfur); elemental analysis on washed and dried sediment residue after TRIS extraction
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
251 data points

Data

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

1 
Event		2 
Date/Time		3 
Latitude		4 
Longitude		5 
Sample label		6 
Unit		7 
Depth comp [mcd]		8 
Depth sed [m]		9 
FeD [%]		10 
Fe HCl acid soluble [mg/kg]		11 
TRIS [%]		12 
CRS [%]		13 
AVS [mg/kg]		14 
S org [%]
207-1258A 2003-01-22T18:15:009.4333-54.73331258-A-1R-1I1.451.451.69069.500.000110
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-1R-2I2.952.950.29020.400.000140
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-3R-4II20.1520.150.0507.600.000110
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-4R-4II29.7529.750.0506.800.000097
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-5R-3II42.1537.650.09018.100.000410
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-6R-4II49.2748.750.40031.600.000150
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-7R-4II59.1458.150.34023.500.000730
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-8R-4II69.9268.070.14014.200.000330
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-9R-6II81.0580.800.16015.600.000150
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-10R-3II86.6386.000.23022.100.000270
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-11R-5II98.3598.650.15019.800.000510
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-12R-5II108.69108.300.12014.600.000198
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-13R-4II117.01116.400.10016.500.006300
207-1258B 2003-01-25T10:10:009.4333-54.73301258-B-14R-4II134.22132.000.07011.800.001100
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-18R-3II171.49170.900.09020.200.006800
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-17R-4II176.79154.950.09017.900.001208
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-20R-2II204.43181.000.08017.400.000170
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-22R-3II224.93201.500.10017.600.001200
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-24R-3II244.12220.690.08019.600.117000
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-26R-2II260.95238.500.18019.600.000170
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-28R-5II284.80262.350.09026.100.002800
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-30R-2II299.47277.100.11024.500.009800
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-32R-5II324.11300.900.12039.000.014600
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-33R-4III329.81307.000.10019.800.001400
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-35R-3III349.67326.800.10022.000.013600
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-36R-3III346.81334.000.09024.000.057000
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-37R-2III367.52344.650.06017.400.097500
207-1258A2003-01-22T18:15:009.4333-54.73331258-A-39R-1III382.27361.530.05011.100.381000
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-39R-5III384.10366.350.0509.000.312000
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-43R-2III412.51390.400.0309.800.582000
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-45R-2IV420.08399.250.0091.601.0400001.030551.02.28
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-46R-1IV425.47403.410.05013.802.5800002.5801.02.94
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-51R-2IV452.24427.920.0103.900.6500000.65087.01.24
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-52R-2IV458.03433.710.0102.300.6200000.62098.01.25
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-54R-3IV468.86444.380.0175.200.9540000.95457.01.15
207-1258B2003-01-25T10:10:009.4333-54.73301258-B-55R-3IV475.13448.270.03012.502.9700002.97037.01.43
207-1258C 2003-01-28T10:10:009.4333-54.73281258-C-30R-1V495.02462.520.0409.582.6400002.64098.00.46
207-1258C2003-01-28T10:10:009.4333-54.73281258-C-34R-2V516.05483.550.0613.1000003.1004.00.14