Identification

Title

Charcoal concentrations from radiocarbon-dated lake sediments in the Brazilian Pantanal

Abstract

Data include four charcoal concentration datasets derived from radiocarbon-dated lake sediments in the Brazilian Pantanal, from which regional fire histories can be inferred over the last few millennia. Each dataset provides raw counts of charcoal fragments > 125 um calculated per cubic centimetre of sediment. Samples measuring 0.5 to 1.5 cc were analysed at each 1-cm depth. Contained within each data sheet are radiocarbon dates for several horizons in the lake sediment for the derivation of age-depth models for a chronological framework for each record. Full details about this dataset can be found at https://doi.org/10.5285/56915f15-46b5-4693-8737-28c985f27f80

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/data/56915f15-46b5-4693-8737-28c985f27f80

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/56915f15-46b5-4693-8737-28c985f27f80.zip

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/56915f15-46b5-4693-8737-28c985f27f80

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

environment

Keywords

Geographic location

West bounding longitude

-64.248

East bounding longitude

-50.01

North bounding latitude

-4.464

South bounding latitude

-18.238

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2023-11-21

Frequency of update

Quality and validity

Lineage

Sediment samples were extracted at a 1 cm resolution through the studied cores and their volume measured using water displacement. Clay rich sediments (LM and LC) were treated with 200 ml of 7 % sodium hexametaphosphate (Na6P6O18) and organic rich sediments (MIM) in 200 ml of 10 % potassium hydroxide (KOH). Samples were deflocculated on a hot plate for 30 minutes at 80 oC. Residues from the organic rich sediments were additionally washed in deionized water and placed in 7 % hydrogen peroxide (H2O2) for 24 hours at room temperature. The residues were sieved at 125 μm and 250 μm. Residues were counted at 125 μm and 250 μm under a low powered microscope in a bogorov tray. Raw charcoal counts were converted to a concentration (particles cm3). Sediment samples were obtained from discrete horizons from each core and sent for radiocarbon dating at commercial laboratory facilities.

Conformity

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

If you reuse this data, you should cite: Whitney, B.S., Loughlin, N.J.D., Neves, D.M., D’Apolito, C., Assine, M.L., Mayle, F.E., Silva, A. (2023). Charcoal concentrations from radiocarbon-dated lake sediments in the Brazilian Pantanal. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/56915f15-46b5-4693-8737-28c985f27f80

Responsible organisations

Responsible party

organisation name

email address

Bronwen.whitney@northumbria.ac.uk

web address

https://orcid.org/0000-0002-2329-9645

description: ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.

function: information