U/Th dated speleothems from submerged caves in the northeastern Yucatan Peninsula
type: Dataset
conforms to: http://mlcommons.org/croissant/1.0
creator: Simon Dominik Steidle
creator: Sophie Warken
  type: Person
  family name: Warken
  given name: Sophie
creator: Nils Schorndorf
creator: Julius Förstel
  type: Person
  family name: Förstel
  given name: Julius
creator: Andrea Schröder-Ritzrau
creator: Gina Elaine Moseley
creator: Christoph Spötl
creator: Jeronimo Aviles
  type: Person
  family name: Aviles
  given name: Jeronimo
creator: Wolfgang Stinnesbeck
  type: Person
  family name: Stinnesbeck
  given name: Wolfgang
creator: Norbert Frank
publisher: PANGAEA
  type: Organization
  disambiguating description: Data Publisher for Earth & Environmental Science
included in data catalog: PANGAEA
  type: DataCatalog
  disambiguating description: Data Publisher for Earth & Environmental Science
date published: 2021-04-20
additional type: dataset
description: This dataset contains 48 U-Th ages of 14 speleothems used to reconstruct past sea level between 9ka and 421ka ago. They were collected from submerged caves in an area (<20 km) around Tulum, Quintana Roo, Mexico (20.2°N, 87.5°W) at elevations between 0.0 m a.s.l and -28.7 m a.s.l. The speleothems were collected in situ and their elevation was measured with a dive computer (+-0.1m) at the base of the speleothem. Speleothem length ranges between 2 cm and 34 cm. The measurements were carried out by a multi-collector inductively coupled plasma mass spectrometer (ThermoFisher Neptune Plus).
abstract: This dataset contains 48 U-Th ages of 14 speleothems used to reconstruct past sea level between 9ka and 421ka ago. They were collected from submerged caves in an area (<20 km) around Tulum, Quintana Roo, Mexico (20.2°N, 87.5°W) at elevations between 0.0 m a.s.l and -28.7 m a.s.l. The speleothems were collected in situ and their elevation was measured with a dive computer (+-0.1m) at the base of the speleothem. Speleothem length ranges between 2 cm and 34 cm. The measurements were carried out by a multi-collector inductively coupled plasma mass spectrometer (ThermoFisher Neptune Plus).
citation: Reconstruction of Middle to Late Quaternary sea level using submerged speleothems from the northeastern Yucatán Peninsula
spatial coverage: Place
  geo: GeoShape
    box: 20.199 -87.513 20.2 -87.5
size: QuantitativeValue
  value: 808.0
  unit text: data points
variable measured: Event label
variable measured: Sample code/label
variable measured: DISTANCE
  type: PropertyValue
  unit text: cm
  description: from top
  subject of: DefinedTermSet
    has defined term: distance
    has defined term: Length
variable measured: Uranium-238
  type: PropertyValue
  unit text: ng/g
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  subject of: DefinedTermSet
    has defined term: uranium-238
      type: DefinedTerm
      alternate name: 238U
variable measured: Uranium-238, standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  description: Uncertainty, 2σ-range, not including half-life uncertainties
  subject of: DefinedTermSet
    has defined term: uranium-238
      type: DefinedTerm
      alternate name: 238U
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
variable measured: Thorium-232
  type: PropertyValue
  unit text: ng/g
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  subject of: DefinedTermSet
    has defined term: thorium-232
      type: DefinedTerm
      alternate name: 232Th
variable measured: Thorium-232, standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  description: Uncertainty, 2σ-range, not including half-life uncertainties
  subject of: DefinedTermSet
    has defined term: thorium-232
      type: DefinedTerm
      alternate name: 232Th
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
variable measured: Thorium-230/Uranium-238 activity ratio
  type: PropertyValue
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  subject of: DefinedTermSet
    has defined term: thorium-230
      type: DefinedTerm
      alternate name: 230Th
    has defined term: ratio
variable measured: Thorium-230/Uranium-238 activity ratio, standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  description: Uncertainty, 2σ-range, not including half-life uncertainties
  subject of: DefinedTermSet
    has defined term: thorium-230
      type: DefinedTerm
      alternate name: 230Th
    has defined term: ratio
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
variable measured: Thorium-230/Thorium-232 activity ratio
  type: PropertyValue
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  subject of: DefinedTermSet
    has defined term: thorium-230
      type: DefinedTerm
      alternate name: 230Th
    has defined term: ratio
variable measured: Thorium-230/Thorium-232 activity ratio, standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  description: Uncertainty, 2σ-range, not including half-life uncertainties
  subject of: DefinedTermSet
    has defined term: thorium-230
      type: DefinedTerm
      alternate name: 230Th
    has defined term: ratio
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
variable measured: δ234 Uranium
  type: PropertyValue
  unit text: ‰
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
variable measured: δ234 Uranium, standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  description: Uncertainty, 2σ-range, not including half-life uncertainties
  subject of: DefinedTermSet
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
variable measured: Age, dated
  type: PropertyValue
  unit text: ka
  measurement technique: Age, 230Th/U
  description: Uncorrected
  subject of: DefinedTermSet
    has defined term: age
    has defined term: Time
variable measured: Age, dated, standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: Age, 230Th/U
  description: Uncertainty, 2σ-range, uncorrected
  subject of: DefinedTermSet
    has defined term: age
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
variable measured: Age, dated
  type: PropertyValue
  unit text: ka
  measurement technique: Age, 230Th/U
  description: Corrected
  subject of: DefinedTermSet
    has defined term: age
    has defined term: Time
variable measured: Age, dated, standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: Age, 230Th/U
  description: Uncertainty, 2σ-range, corrected
  subject of: DefinedTermSet
    has defined term: age
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
variable measured: δ234 Uranium (0)
  type: PropertyValue
  unit text: ‰
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  description: initial
variable measured: δ234 Uranium (0), standard deviation
  type: PropertyValue
  unit text: ±
  measurement technique: MC-ICP-MS ThermoFisher Scientific Neptune Plus
  description: Initial, uncertainty, 2σ-range, not including half-life uncertainties
  subject of: DefinedTermSet
    has defined term: standard deviation
      type: DefinedTerm
      alternate name: std dev
keywords: sea level; Speleothems; U/Th; Yucatan Peninsula
comment: Errors are 2 sigma analytical errors (absolute uncertainties). All calculations used the decay constants of Cheng et al. (2013) for 234U and 230Th, Jaffey et al. (1971) for 238U and Le Roux and Glendenin (1963) for 232Th. Corrected 230Th-U ages assume an initial 230Th/232Th activity ratio of 3.5 ± 1.3. Ages are given as age before the year 1950 CE. Measurements were carried out at University of Heidelberg (Germany) in the years 2018/2019 CE.
license: https://creativecommons.org/licenses/by/4.0/
conditions of access: unrestricted
is accessible for free: true
language: en
distribution: data matrix.tab
distribution: FileObject

Simon Dominik Steidle
type: Person
family name: Steidle
given name: Simon Dominik

Nils Schorndorf
type: Person
family name: Schorndorf
given name: Nils

Andrea Schröder-Ritzrau
type: Person
family name: Schröder-Ritzrau
given name: Andrea

Gina Elaine Moseley
type: Person
family name: Moseley
given name: Gina Elaine

Christoph Spötl
type: Person
family name: Spötl
given name: Christoph

Norbert Frank
type: Person
family name: Frank
given name: Norbert

Reconstruction of Middle to Late Quaternary sea level using submerged speleothems from the northeastern Yucatán Peninsula
type: CreativeWork
type: ScholarlyArticle
creator: Simon Dominik Steidle
creator: Sophie F Warken
creator: Nils Schorndorf
creator: Julius Förstel
  type: Person
  family name: Förstel
  given name: Julius
creator: Andrea Schröder-Ritzrau
creator: Gina Elaine Moseley
creator: Christoph Spötl
creator: Jeronimo Aviles
  type: Person
  family name: Aviles
  given name: Jeronimo
creator: Wolfgang Stinnesbeck
  type: Person
  family name: Stinnesbeck
  given name: Wolfgang
creator: Norbert Frank
date published: 2021
is part of: Journal of Quaternary Science
additional type: journal article

Sophie F Warken
type: Person
family name: Warken
given name: Sophie F

distance
type: DefinedTerm

Length
type: DefinedTerm
alternate name: L

ratio
type: DefinedTerm

age
type: DefinedTerm

Time
type: DefinedTerm
alternate name: T

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type: FileObject
type: DataDownload
encoding format: text/tab-separated-values

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encoding format: text/html