Data for: Paleoenvironmental reconstruction of the semi-arid Argentine Chaco based on lake multiproxy records over the last six centuries

Main Author: Speranza, Flavio Cesar
Other Authors: Lupo, Liliana Concepción, Kulemeyer, Julio José, Claramunt López, Bernat, Giralt, Santiago, Pereira, Elizabeth de los Angeles
Format: Dataset
Terbitan: Mendeley , 2019
Subjects:
Online Access: https:/data.mendeley.com/datasets/hnzbyhj785
ctrlnum 0.17632-hnzbyhj785.1
fullrecord <?xml version="1.0"?> <dc><creator>Speranza, Flavio Cesar</creator><title>Data for: Paleoenvironmental reconstruction of the semi-arid Argentine Chaco based on lake multiproxy records over the last six centuries </title><publisher>Mendeley</publisher><description>In this work we present the data of mineralogical, high resolution geochemical and palynological analyzes of core LY3.3 lake sediments of Laguna Yema. The mineralogical data, obtained by X-ray diffractometer, were mainly composed of variable proportions of quartz, clays (illite) and plagioclase (microcline and albite). The geochemical series, obtained by X-ray fluorescence (XRF), showed tendencies towards significant levels of elements Al, Si, S, Ca, Br and Zr. Levels of Al, Si, and Zr, declined progressively towards the top of the core. Contrastingly, S, Ca and Br exhibited a gradual increase towards the top. This less evident trend also occurred for Sr. The palynological data processing was carried out using standard palynological techniques for Quaternary pollen (F&#xE6;gri and Iversen, 1989). The following groups were defined: Trees, Shrubs, Herbs, Aquatic and Spores. The Trees Group is composed of 9 types of pollen; the Shrubs Group is constituted of 7 pollen types; the Herbs Group is made up of 18 types of pollen; the Aquatic Group is made up of Alternanthera aquatica and Juncaginaceae pollen types; and the Spores Group is composed of Polypodium, Pteridophyta and 3 unidentified spore types </description><subject>Lake Sediments</subject><subject>Palynology</subject><subject>Holocene</subject><subject>Palaeoclimate</subject><subject>Palaeoecology</subject><contributor>Lupo, Liliana Concepci&#xF3;n</contributor><contributor>Kulemeyer, Julio Jos&#xE9;</contributor><contributor>Claramunt L&#xF3;pez, Bernat</contributor><contributor>Giralt, Santiago</contributor><contributor>Pereira, Elizabeth de los Angeles</contributor><type>Other:Dataset</type><identifier>10.17632/hnzbyhj785.1</identifier><rights>Creative Commons Attribution 4.0 International</rights><rights>http://creativecommons.org/licenses/by/4.0</rights><relation>https:/data.mendeley.com/datasets/hnzbyhj785</relation><date>2019-04-01T10:00:24Z</date><date>2019-10-20T00:00:00Z</date><recordID>0.17632-hnzbyhj785.1</recordID></dc>
format Other:Dataset
Other
author Speranza, Flavio Cesar
author2 Lupo, Liliana Concepción
Kulemeyer, Julio José
Claramunt López, Bernat
Giralt, Santiago
Pereira, Elizabeth de los Angeles
title Data for: Paleoenvironmental reconstruction of the semi-arid Argentine Chaco based on lake multiproxy records over the last six centuries
publisher Mendeley
publishDate 2019
topic Lake Sediments
Palynology
Holocene
Palaeoclimate
Palaeoecology
url https:/data.mendeley.com/datasets/hnzbyhj785
contents In this work we present the data of mineralogical, high resolution geochemical and palynological analyzes of core LY3.3 lake sediments of Laguna Yema. The mineralogical data, obtained by X-ray diffractometer, were mainly composed of variable proportions of quartz, clays (illite) and plagioclase (microcline and albite). The geochemical series, obtained by X-ray fluorescence (XRF), showed tendencies towards significant levels of elements Al, Si, S, Ca, Br and Zr. Levels of Al, Si, and Zr, declined progressively towards the top of the core. Contrastingly, S, Ca and Br exhibited a gradual increase towards the top. This less evident trend also occurred for Sr. The palynological data processing was carried out using standard palynological techniques for Quaternary pollen (Fægri and Iversen, 1989). The following groups were defined: Trees, Shrubs, Herbs, Aquatic and Spores. The Trees Group is composed of 9 types of pollen; the Shrubs Group is constituted of 7 pollen types; the Herbs Group is made up of 18 types of pollen; the Aquatic Group is made up of Alternanthera aquatica and Juncaginaceae pollen types; and the Spores Group is composed of Polypodium, Pteridophyta and 3 unidentified spore types
id IOS7969.0.17632-hnzbyhj785.1
institution Universitas Islam Indragiri
affiliation onesearch.perpusnas.go.id
institution_id 804
institution_type library:university
library
library Teknologi Pangan UNISI
library_id 2816
collection Artikel mulono
repository_id 7969
city INDRAGIRI HILIR
province RIAU
shared_to_ipusnas_str 1
repoId IOS7969
first_indexed 2020-04-08T08:24:26Z
last_indexed 2020-04-08T08:24:26Z
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