Citation:

PANGAEA.996372 (dataset in review)

Name: Bulk-rock X-ray diffraction quantitative phase analysis of the Alano di Piave section across the Middle Eocene Climatic Optimum
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Alano di Piave; carbonate dilution; Clay minerals; marlstone; Middle Eocene Climatic Optimum; quantitative phase analysis; X-ray diffraction

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Abstract:

Bulk-rock mineral abundances and carbonate contents were determined for marlstone samples from the Alano di Piave section (45.9138889° N, 11.9152778° E), northeastern Italy. Samples were collected during May–June 2024 from a stratigraphic interval spanning pre-Middle Eocene Climatic Optimum (MECO), MECO, and post-MECO deposits. The dataset was generated to quantify changes in carbonate, clay-mineral, quartz–feldspar, and accessory-mineral abundances and to evaluate detrital sediment delivery and carbonate dilution across the event. Powder X-ray diffraction data were acquired using a Bruker D8 Advance DaVinci diffractometer with Cu Kα radiation and a LynxEye XE-T detector. Mineral phases were quantified by full-pattern Rietveld refinement using Profex v5.0.2. Abundances are reported as weight percentages normalized to the sum of the identified crystalline phases; no internal standard was used to quantify amorphous material. Sample identifiers, stratigraphic depths, individual mineral abundances, calcite plus dolomite, and carbonate-content values are included.

Keyword(s):

Alano di Piave; carbonate dilution; Clay minerals; marlstone; Middle Eocene Climatic Optimum; quantitative phase analysis; X-ray diffraction

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: 33.46 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.

Comment:

Mineral abundance expressed as wt.%.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	SECTION, height	Section	m	Sigismondi, Silvia		Geocode – Stratigraphic depth
2	Sample code/label	Sample label		Sigismondi, Silvia
3	Calcite	Cal	%	Sigismondi, Silvia	X-ray diffraction (XRD)
4	Chlorite	Chl	%	Sigismondi, Silvia	X-ray diffraction (XRD)
5	Dolomite	Dol	%	Sigismondi, Silvia	X-ray diffraction (XRD)
6	Goethite	Gth	%	Sigismondi, Silvia	X-ray diffraction (XRD)
7	Gypsum	Gp	%	Sigismondi, Silvia	X-ray diffraction (XRD)
8	Hematite, Fe2O3	Hem	%	Sigismondi, Silvia	X-ray diffraction (XRD)
9	Kaolinite	Kln	%	Sigismondi, Silvia	X-ray diffraction (XRD)
10	Illite/muscovite	Ill/Ms	%	Sigismondi, Silvia	X-ray diffraction (XRD)
11	Orthoclase	Or	%	Sigismondi, Silvia	X-ray diffraction (XRD)
12	Plagioclase	Pl	%	Sigismondi, Silvia	X-ray diffraction (XRD)
13	Pyrite, FeS2	Py	%	Sigismondi, Silvia	X-ray diffraction (XRD)
14	Quartz	Qz	%	Sigismondi, Silvia	X-ray diffraction (XRD)
15	Smectite	Sme	%	Sigismondi, Silvia	X-ray diffraction (XRD)	rich IS ML
16	Talc	Tlc	%	Sigismondi, Silvia	X-ray diffraction (XRD)
17	Calcite	Cal	%	Sigismondi, Silvia	X-ray diffraction (XRD)	plus dolomite
18	Carbonates	Carb	%	Sigismondi, Silvia	X-ray diffraction (XRD)

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:

2263 data points

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