Citation:

PANGAEA.973415 (dataset in review)

Name: Transformation of dissolved organic matter chracterized by FT-ICR-MS during incubation of sediment core 322-C0012
License: https://creativecommons.org/licenses/by/4.0/
Keywords: deep biosphere; DOM; Drilling Vessel DV Chikyu; humic decomposition; Hydrogenase; International Ocean Drilling Program (IODP); IODP Expedition 322; microbial carbon pump; mineral carbon pump; Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE); Site C0012; "Subduction Inputs"; thermal environment

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Abstract:

This data set shows the formulae of dissolved organic matter characterized by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) at temperatures of 20°C (in situ), 35°C, 55°C, and 85°C during a slurry incubation of core C0012 sediment with artificial seawater. Incubation time points are presented for day 0 (start), day 1 (only for 85°C), and day 55 (end).

Keyword(s):

deep biosphere; DOM; Drilling Vessel DV Chikyu; humic decomposition; Hydrogenase; International Ocean Drilling Program (IODP); IODP Expedition 322; microbial carbon pump; mineral carbon pump; Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE); Site C0012; "Subduction Inputs"; thermal environment

Related to:

Gan, Shuchai; Heuer, Verena B; Schmidt, Frauke; Wörmer, Lars; Wang, Faming; Adhikari, Rishi Ram; Hinrichs, Kai-Uwe (submitted): A study on how moderate heating renders 7.8 million-year-old organic matter bioavailable in deep marine sediments. Nature Communications

Project(s):

Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)

Funding:

German Research Foundation (DFG), grant/award no. 387745511 : Exploring the impact of temperature on dissolved organic matter and life in the deep biosphere off Muroto, Nankai Trough (IODP Expedition 370)

German Research Foundation (DFG), grant/award no. 390741603 : EXC 2077: The Ocean Floor – Earth's Uncharted Interface

Coverage:

Latitude: 32.748000 * Longitude: 136.917000

Minimum DEPTH, sediment/rock: 159 m * Maximum DEPTH, sediment/rock: 159 m

Event(s):

322-C0012 * Latitude: 32.748000 * Longitude: 136.917000 * Campaign: (NanTroSEIZE Stage 2: Subduction Input) * Basis: Chikyu * Method/Device: Composite Core (COMPCORE)

Comment:

RInt: The abundance of formulae (rIntn) is reported as relative intensity of an individual formula compared to the total intensity of all assigned formulae. The value of "0" indicates either no detected formulas or formulas with relative intensity (rInt) < 0.02 and signal-to-noise ratios < 8.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Gan, Shuchai		Geocode
2	Type of study	Study type		Gan, Shuchai
3	Molecular formula	Formula		Gan, Shuchai	Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS, 15 T Bruker Solarix)
4	Intensity, relative	rel Int		Gan, Shuchai		at 55°C-end
5	Intensity, relative	rel Int		Gan, Shuchai		at 35°C-end
6	Intensity, relative	rel Int		Gan, Shuchai		at 85°C-end
7	Intensity, relative	rel Int		Gan, Shuchai		RIntn at 85°C-15days
8	Intensity, relative	rel Int		Gan, Shuchai		RIntn at 85°C-1day
9	Intensity, relative	rel Int		Gan, Shuchai		at 35°C-end-replicate
10	Intensity, relative	rel Int		Gan, Shuchai		on day 0
11	Carbon, number of atoms	C atoms	#	Gan, Shuchai
12	Hydrogen, number of atoms	H atoms	#	Gan, Shuchai
13	Oxygen, number of atoms	O atoms	#	Gan, Shuchai
14	Nitrogen, number of atoms	N atoms	#	Gan, Shuchai
15	Sulfur, number of atoms	S atoms	#	Gan, Shuchai
16	Phosphorus, number of atoms	P atoms	#	Gan, Shuchai
17	Aromatic Index	AI		Gan, Shuchai		refers to the density of carbon carbon double bonds in a molecule
18	Mass-to-charge ratio	m/z		Gan, Shuchai
19	Double bond equivalent	DBE		Gan, Shuchai		DBEO is approximation of DBE in a molecule without consideration of double bonds associated with oxygen
20	Hydrogen/Carbon ratio	H/C		Gan, Shuchai
21	Oxygen/Carbon ratio	O/C		Gan, Shuchai
22	Double bond equivalent	DBE		Gan, Shuchai

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

196182 data points

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