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Antropocen : vad, när och hur?

Hebrard, Benoit LU (2018) In Examensarbeten i geologi vid Lunds universitet GEOL01 20181
Department of Geology
Abstract
The term Anthropocene has begun to be used to emphasize that conditions on Earth are governed by human activity and not by natural processes, as in the Holocene. However, the Anthropocene is not yet fully defined, neither temporally nor stratigraphically. The purpose of this study is therefore to define what characterizes the Anthropocene, investigate stratigraphic markers that define its beginning and thus find its start date. The study was based on a litterature review of scientific articles published in peer-review journals. The selected articles were limited to studies published after 2002 and which treated Anthropocene from a geological perspective. The study shows that the Great Acceleration (from 1950 onwards) is the time period... (More)
The term Anthropocene has begun to be used to emphasize that conditions on Earth are governed by human activity and not by natural processes, as in the Holocene. However, the Anthropocene is not yet fully defined, neither temporally nor stratigraphically. The purpose of this study is therefore to define what characterizes the Anthropocene, investigate stratigraphic markers that define its beginning and thus find its start date. The study was based on a litterature review of scientific articles published in peer-review journals. The selected articles were limited to studies published after 2002 and which treated Anthropocene from a geological perspective. The study shows that the Great Acceleration (from 1950 onwards) is the time period that has given rise to the largest number of markers for the Anthropocene. Results indicate that the primary marker should either be fly ash (SCP) or δ13C, whereas artificial radionuclides (14C, 239Pu), δ15N and microplastics could be used as secondary markers. In the distant future, the effects of temperature rise and the sixth mass extinction are likely to be the clearest traces of the Anthropocene's beginning. (Less)
Abstract (Swedish)
Begreppet Anthropocene har börjat användas för att betona att förhållandena på jorden styrs av mänsklig aktivitet och inte av naturliga processer, som under holocen. Antropocen är dock ännu inte helt definierat, varken tidsmässigt eller stratigrafiskt. Syftet med den här studien är därför att definiera vad som kännetecknar antropocen, utreda de stratigrafiska markörer som definierar dess början och därmed hitta dess startdatum. Studien baserades på en litteraturreview av vetenskapliga artiklar publicerad i peer-review tidskrifter. Artiklarna begränsades till studier som publicerades efter 2002 och behandlade antropocen ur ett geologiskt perspektiv. Studien visar att den stora accelerationen (från 1950 och framåt) är den tidsperiod som har... (More)
Begreppet Anthropocene har börjat användas för att betona att förhållandena på jorden styrs av mänsklig aktivitet och inte av naturliga processer, som under holocen. Antropocen är dock ännu inte helt definierat, varken tidsmässigt eller stratigrafiskt. Syftet med den här studien är därför att definiera vad som kännetecknar antropocen, utreda de stratigrafiska markörer som definierar dess början och därmed hitta dess startdatum. Studien baserades på en litteraturreview av vetenskapliga artiklar publicerad i peer-review tidskrifter. Artiklarna begränsades till studier som publicerades efter 2002 och behandlade antropocen ur ett geologiskt perspektiv. Studien visar att den stora accelerationen (från 1950 och framåt) är den tidsperiod som har gett upphov till det största antalet markörer för antropocen. Resultat tyder på att huvudmarkören bör antingen vara flygaska (SCP) eller δ13C, medan artificiella radionuklider (14C, 239Pu), δ15N och mikroplast skulle kunna användas som sekundärmarkörer. I den avlägsna framtiden kommer sannolikt effekterna av temperaturökningen och det sjätte massutdöendet att vara de tydligaste spåren av antropocens början. (Less)
Please use this url to cite or link to this publication:
author
Hebrard, Benoit LU
supervisor
organization
alternative title
The Anthropocene : what, when and how?
course
GEOL01 20181
year
type
M2 - Bachelor Degree
subject
keywords
the Antropocene, GSSP, marker, microplastics, artificial radionuclides
publication/series
Examensarbeten i geologi vid Lunds universitet
report number
533
language
Swedish
id
8943946
date added to LUP
2018-06-01 14:37:56
date last changed
2018-06-01 14:37:56
@misc{8943946,
  abstract     = {The term Anthropocene has begun to be used to emphasize that conditions on Earth are governed by human activity and not by natural processes, as in the Holocene. However, the Anthropocene is not yet fully defined, neither temporally nor stratigraphically. The purpose of this study is therefore to define what characterizes the Anthropocene, investigate stratigraphic markers that define its beginning and thus find its start date. The study was based on a litterature review of scientific articles published in peer-review journals. The selected articles were limited to studies published after 2002 and which treated Anthropocene from a geological perspective. The study shows that the Great Acceleration (from 1950 onwards) is the time period that has given rise to the largest number of markers for the Anthropocene. Results indicate that the primary marker should either be fly ash (SCP) or δ13C, whereas artificial radionuclides (14C, 239Pu), δ15N and microplastics could be used as secondary markers. In the distant future, the effects of temperature rise and the sixth mass extinction are likely to be the clearest traces of the Anthropocene's beginning.},
  author       = {Hebrard, Benoit},
  keyword      = {the Antropocene,GSSP,marker,microplastics,artificial radionuclides},
  language     = {swe},
  note         = {Student Paper},
  series       = {Examensarbeten i geologi vid Lunds universitet},
  title        = {Antropocen : vad, när och hur?},
  year         = {2018},
}