English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Charcoal analysis for temperature reconstruction with infrared spectroscopy

Minatre, K. L., Arienzo, M. M., Moosmüller, H., & Maezumi, S. Y. (2024). Charcoal analysis for temperature reconstruction with infrared spectroscopy. Frontiers in Earth Science, 12: 1354080. doi:10.3389/feart.2024.1354080.

Item is

Files

show Files
hide Files
:
gea0194.pdf (Publisher version), 10MB
Name:
gea0194.pdf
Description:
-
OA-Status:
Gold
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-

Locators

show
hide
Locator:
Data Sheet 1 (Supplementary material)
Description:
(last seen: Feb. 2024)
OA-Status:
Not specified

Creators

show
hide
 Creators:
Minatre, Kerri L., Author
Arienzo, Monica M., Author
Moosmüller, Hans, Author
Maezumi, S. Yoshi1, Author           
Affiliations:
1Department of Archaeology, Max Planck Institute of Geoanthropology, Max Planck Society, ou_3398738              

Content

show
hide
Free keywords: charcoal, combustion facility, fourier transform infrared spectroscopy (FTIR), pyrolysis temperature, vegetation fire
 Abstract: The duration and maximum combustion temperature of vegetation fires are important fire properties with implications for ecology, hydrology, hazard potential, and many other processes. Directly measuring maximum combustion temperature during vegetation fires is difficult. However, chemical transformations associated with temperature are reflected in the chemical properties of charcoals (a by-product of fire). Therefore, charcoal could be used indirectly to determine the maximum combustion temperature of vegetation fires with application to palaeoecological charcoal records. To evaluate the reliability of charcoal chemistry as an indicator of maximum combustion temperature, we studied the chemical properties of charcoal formed through two laboratory methods at measured temperatures. Using a muffle furnace, we generated charcoal from the woody material of ten different tree and shrub species at seven distinct peak temperatures (from 200°C to 800°C in 100°C increments). Additionally, we simulated more natural combustion conditions by burning woody material and leaves of four tree species in a combustion facility instrumented with thermocouples, including thermocouples inside and outside of tree branches. Charcoal samples generated in these controlled settings were analyzed using Fourier Transform Infrared (FTIR) spectroscopy to characterize their chemical properties. The Modern Analogue Technique (MAT) was employed on FTIR spectra of muffle furnace charcoal to assess the accuracy of inferring maximum pyrolysis temperature. The MAT model temperature matching accuracy improved from 46% for all analogues to 81% when including ±100°C. Furthermore, we used MAT to compare charcoal created in the combustion facility with muffle furnace charcoal. Our findings indicate that the spectra of charcoals generated in a combustion facility can be accurately matched with muffle furnace-created charcoals of similar temperatures using MAT, and the accuracy improved when comparing the maximum pyrolysis temperature from muffle furnace charcoal with the maximum inner temperature of the combustion facility charcoal. This suggests that charcoal produced in a muffle furnace may be representative of the inner maximum temperatures for vegetation fire-produced charcoals.

Details

show
hide
Language(s): eng - English
 Dates: 2023-12-112024-02-022024-02-16
 Publication Status: Published online
 Pages: 14
 Publishing info: -
 Table of Contents: 1 Introduction
2 Materials and methods
2.1 Site and sample selection
2.2 Production of charcoal in the muffle furnace
2.3 Production of charcoal in the combustion facility
2.4 FTIR characterization of charcoal
2.5 Statistical analysis of FTIR charcoal spectra
3 Results
3.1 Muffle furnace charcoal FTIR spectra
3.2 Analogue matching of muffle furnace material
3.3 Analogue matching of combustion facility material
4 Discussion
5 Limitations
6 Conclusion
 Rev. Type: Peer
 Identifiers: DOI: 10.3389/feart.2024.1354080
Other: gea0194
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Frontiers in Earth Science
  Abbreviation : Front. Earth Sci.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Lausanne : Frontiers Media
Pages: - Volume / Issue: 12 Sequence Number: 1354080 Start / End Page: - Identifier: ISSN: 2296-6463
CoNE: https://pure.mpg.de/cone/journals/resource/2296-6463