Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina

Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina. This paper presents high-resolution (multi-decadal) paleoenvironmental data of the last 1400 years in the northwestern sector of the dry Puna, Jujuy Province (Argentina). This information results from the analysis of the diatom...

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Autor principal: Maidana, Nora Irene
Publicado: 2015
Materias:
Decadal resolution
Dry puna
Late holocene
Little ice age
Medieval climatic anomaly
Paleoenvironment
Paleolimnology
Phycology
Tropical andes
Vilama complex
arid environment
chronology
diatom
Little Ice Age
Medieval Warm Period
Northern Hemisphere
paleoenvironment
paleolimnology
sediment core
Argentina
CALABARZON
Jujuy
Laguna [Calabarzon]
Philippines
Bacillariophyta
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v25_n3_p182_Morales
http://hdl.handle.net/20.500.12110/paper_03275477_v25_n3_p182_Morales
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03275477_v25_n3_p182_Morales
record_format dspace
spelling paper:paper_03275477_v25_n3_p182_Morales2023-06-08T15:33:22Z Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina Maidana, Nora Irene Decadal resolution Dry puna Late holocene Little ice age Medieval climatic anomaly Paleoenvironment Paleolimnology Phycology Tropical andes Vilama complex arid environment chronology diatom Little Ice Age Medieval Warm Period Northern Hemisphere paleoenvironment paleolimnology sediment core Argentina CALABARZON Jujuy Laguna [Calabarzon] Philippines Bacillariophyta Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina. This paper presents high-resolution (multi-decadal) paleoenvironmental data of the last 1400 years in the northwestern sector of the dry Puna, Jujuy Province (Argentina). This information results from the analysis of the diatom assemblies recovered from sediment core samples collected at Laguna Pululos (22º32’43’’ S; 66º48’25’’ W), a shallow lake located at 4557 m.a.s.l. In this work we present and discuss the main results regarding the species composition of the diatom assemblages, and the observed paleoenvironmental trends related to the main characteristics and chronology of the medieval climatic anomaly (MCA) and little ice age (LIA). The results of the study indicate the onset of very arid conditions between ~800 and 1500 AD, and a sharp change to moister conditions from the latter period until the end of the XIX century. Noteworthy, two periods could be recognized, one between 600 and 800 AD (the moistest phase of the last 1400 years), and between 1366 and 1463 AD (a particularly arid phase). These periods recorded in Laguna Pululos apparently shared characteristics with the MCA and LIA, although, showing differences with chronologies found in the North Hemisphere, with an extended span of the arid conditions during the MCA in comparison with other paleoenvironmental records of the Andes. © 2015, Asociacion Argentina de Ecologia. All rights reserved. Fil:Maidana, N.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v25_n3_p182_Morales http://hdl.handle.net/20.500.12110/paper_03275477_v25_n3_p182_Morales
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Decadal resolution
Dry puna
Late holocene
Little ice age
Medieval climatic anomaly
Paleoenvironment
Paleolimnology
Phycology
Tropical andes
Vilama complex
arid environment
chronology
diatom
Little Ice Age
Medieval Warm Period
Northern Hemisphere
paleoenvironment
paleolimnology
sediment core
Argentina
CALABARZON
Jujuy
Laguna [Calabarzon]
Philippines
Bacillariophyta
spellingShingle Decadal resolution
Dry puna
Late holocene
Little ice age
Medieval climatic anomaly
Paleoenvironment
Paleolimnology
Phycology
Tropical andes
Vilama complex
arid environment
chronology
diatom
Little Ice Age
Medieval Warm Period
Northern Hemisphere
paleoenvironment
paleolimnology
sediment core
Argentina
CALABARZON
Jujuy
Laguna [Calabarzon]
Philippines
Bacillariophyta
Maidana, Nora Irene
Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina
topic_facet Decadal resolution
Dry puna
Late holocene
Little ice age
Medieval climatic anomaly
Paleoenvironment
Paleolimnology
Phycology
Tropical andes
Vilama complex
arid environment
chronology
diatom
Little Ice Age
Medieval Warm Period
Northern Hemisphere
paleoenvironment
paleolimnology
sediment core
Argentina
CALABARZON
Jujuy
Laguna [Calabarzon]
Philippines
Bacillariophyta
description Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina. This paper presents high-resolution (multi-decadal) paleoenvironmental data of the last 1400 years in the northwestern sector of the dry Puna, Jujuy Province (Argentina). This information results from the analysis of the diatom assemblies recovered from sediment core samples collected at Laguna Pululos (22º32’43’’ S; 66º48’25’’ W), a shallow lake located at 4557 m.a.s.l. In this work we present and discuss the main results regarding the species composition of the diatom assemblages, and the observed paleoenvironmental trends related to the main characteristics and chronology of the medieval climatic anomaly (MCA) and little ice age (LIA). The results of the study indicate the onset of very arid conditions between ~800 and 1500 AD, and a sharp change to moister conditions from the latter period until the end of the XIX century. Noteworthy, two periods could be recognized, one between 600 and 800 AD (the moistest phase of the last 1400 years), and between 1366 and 1463 AD (a particularly arid phase). These periods recorded in Laguna Pululos apparently shared characteristics with the MCA and LIA, although, showing differences with chronologies found in the North Hemisphere, with an extended span of the arid conditions during the MCA in comparison with other paleoenvironmental records of the Andes. © 2015, Asociacion Argentina de Ecologia. All rights reserved.
author Maidana, Nora Irene
author_facet Maidana, Nora Irene
author_sort Maidana, Nora Irene
title Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina
title_short Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina
title_full Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina
title_fullStr Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina
title_full_unstemmed Diatom record of the last 1400 years in Laguna Pululos Jujuy, Argentina
title_sort diatom record of the last 1400 years in laguna pululos jujuy, argentina
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03275477_v25_n3_p182_Morales
http://hdl.handle.net/20.500.12110/paper_03275477_v25_n3_p182_Morales
work_keys_str_mv AT maidananorairene diatomrecordofthelast1400yearsinlagunapululosjujuyargentina
_version_ 1768542842134724608

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