Citation:

PANGAEA.996372 (dataset in review)

Name: Sample-level total and mineral-specific mass accumulation rates for the Alano di Piave section across the Middle Eocene Climatic Optimum
Creator: Giuseppe Cruciani
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Alano di Piave; Carbonate; Clay minerals; dry bulk density; Mass accumulation rate; Middle Eocene Climatic Optimum; sedimentation rate; source-to-sink

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Abstract:

Sample-level total and mineral-specific mass accumulation rates were calculated for the Alano di Piave section, northeastern Italy, to distinguish changes in sediment flux from closed-sum compositional effects and carbonate dilution across the Middle Eocene Climatic Optimum. The calculations combine the GTS2020-based age-depth model, linear sedimentation rates, lithology-dependent dry bulk-density values, and X-ray diffraction mineral abundances. Total mass accumulation rate was calculated as linear sedimentation rate multiplied by dry bulk density. Component-specific rates were calculated by multiplying total mass accumulation rate by the weight fraction of calcite, total carbonates, quartz plus feldspar, total clay minerals, or smectite-rich illite/smectite mixed-layer clay. The table contains phase assignment, sample identifier, stratigraphic depth, interpolated age, linear sedimentation rate, assigned dry bulk density, mineral abundance, and the corresponding accumulation rates. Because dry bulk densities were assigned by lithology rather than measured for each sample, the rates are intended as semi-quantitative estimates of first-order stratigraphic variability.

Keyword(s):

Alano di Piave; Carbonate; Clay minerals; dry bulk density; Mass accumulation rate; Middle Eocene Climatic Optimum; sedimentation rate; source-to-sink

References:

Gradstein, Felix M; Ogg, James G; Schmitz, Mark D; Ogg, Gabi (2020): Geologic Time Scale 2020. Elsevier, https://doi.org/10.1016/C2020-1-02369-3

Funding:

University of Ferrara, grant/award no. Italian Ministerial Decree No. 247: Dipartimenti di Eccellenza project, Department of Physics and Earth Sciences, University of Ferrara – doctoral scholarship of SS

Coverage:

Latitude: 45.913889 * Longitude: 11.915278

Minimum SECTION, height: 4.00 m * Maximum SECTION, height: 33.40 m

Event(s):

Alano_di_Piave * Latitude: 45.913889 * Longitude: 11.915278 * Method/Device: Outcrop sample (OUTCROP) * Comment: Middle-bathyal Eocene sedimentary section; sampling campaign took place in May-June 2024.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Phase	Phase		Cruciani, Giuseppe
2	Sample code/label	Sample label		Cruciani, Giuseppe
3	SECTION, height	Section	m	Cruciani, Giuseppe		Geocode – Stratigraphic depth
4	AGE	Age	ka BP	Cruciani, Giuseppe		Geocode
5	Age	Age	Ma	Cruciani, Giuseppe
6	Linear sedimentation rate	LSR	cm/ka	Cruciani, Giuseppe	Calculated according to age-depth model
7	Density, dry bulk	DBD	g/cm³	Cruciani, Giuseppe	Lithology-dependent assigned value
8	Accumulation rate, mass	MAR	g/cm²/ka	Cruciani, Giuseppe	Calculated from LSR, DBD, and component abundance	total
9	Calcite	Cal	%	Cruciani, Giuseppe	X-ray diffraction (XRD)	wt. %
10	Accumulation rate, mass	MAR	g/cm²/ka	Cruciani, Giuseppe	Calculated from LSR, DBD, and component abundance	MAR calcite
11	Carbonates	Carb	%	Cruciani, Giuseppe	X-ray diffraction (XRD)	wt. %
12	Accumulation rate, mass	MAR	g/cm²/ka	Cruciani, Giuseppe	Calculated from LSR, DBD, and component abundance	MAR carbonates
13	Quartz and Feldspar	Qz+Fsp	%	Cruciani, Giuseppe	X-ray diffraction (XRD)	wt. %
14	Accumulation rate, mass	MAR	g/cm²/ka	Cruciani, Giuseppe	Calculated from LSR, DBD, and component abundance	Quartz and Feldspar
15	Clay minerals	Clay min	%	Cruciani, Giuseppe	X-ray diffraction (XRD)	wt. %
16	Accumulation rate, mass	MAR	g/cm²/ka	Cruciani, Giuseppe	Calculated from LSR, DBD, and component abundance	Clay minerals
17	Mixed layer clay minerals	Mix layer	%	Cruciani, Giuseppe	X-ray diffraction (XRD)	IS ML
18	Accumulation rate, mass	MAR	g/cm²/ka	Cruciani, Giuseppe	Calculated from LSR, DBD, and component abundance	IS ML

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:

2144 data points

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