Crater lakes of the Pali Aike Volcanic Field as key sites for paleoclimatic and paleoecological reconstructions in southern Patagonia, Argentina

Zolitschka, Bernd; Schäbitz, Frank; Lücke, Andreas; Corbella, Hugo; Ercolano, Bettina; Fey, Michael; Haberzettl, Torsten; Janssen, Saskia; Maidana, Nora I.; Mayr, Christoph; Ohlendorf, Christian; Oliva, Gabriel; Paez, Marta M.; Schleser, Gerhard H.; Soto, Julio; Tiberi, Pedro; Wille, Michael

doi:10.1016/j.jsames.2006.04.001

Cited by 105 publications

(150 citation statements)

References 42 publications

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“…Within the~200 km² semiarid catchment area of LPA (Zolitschka et al, 2006), annual precipitation is <300 mm (Mayr et al, 2007b) and reaches 150 mm at a local meteorological station near LPA (Zolitschka et al, 2006). A recent time series of precipitation measurements (1999)(2000)(2001)(2002)(2003)(2004)(2005) at LPA shows that easterly wind directions (from the South Atlantic) are often combined with precipitation, whereas west winds carry considerable less moisture per rainfall event (Mayr et al, 2007b).…”

Section: Site Descriptionmentioning

confidence: 99%

“…The sediment basin containing LPA is of volcanic origin and resulted from a phreatomagmatic eruption dated to 0.77 ± 0.24 Ma by 40 Ar/ 39 Ar (Zolitschka et al, 2006). The area is characterized by extensive backarc volcanism and belongs to the Pali Aike Volcanic Field (Mazzarini and D'Orazio, 2003;Ross et al, 2011).…”

Section: Site Descriptionmentioning

confidence: 99%

“…In a limnological context, LPA is a polymictic and subsaline maar lake (Zolitschka et al, 2006), and clastic sedimentation dominated throughout the past 51 ka (Hahn et al, 2014). In 2003, the lake level was at an elevation of 116 m asl and had a maximum diameter of 3.5 km and a water depth of 100 m (Zolitschka et al, 2006).…”

Section: Site Descriptionmentioning

confidence: 99%

“…In 2003, the lake level was at an elevation of 116 m asl and had a maximum diameter of 3.5 km and a water depth of 100 m (Zolitschka et al, 2006). Numerous subaerial and subaqueous lake-level terraces demonstrate rapid and sizable past hydrologic variations and a paleo-outflow channel related to an exceptional high lake level (Haberzettl et al, 2005(Haberzettl et al, , 2007Anselmetti et al, 2009;Kliem et al, 2013a).…”

Section: Site Descriptionmentioning

confidence: 99%

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Periodic 1.5 ka climate variations during MIS 2 in the belt of Southern Hemispheric westerlies

Kliem¹,

Baumgarten

Gebhardt

et al. 2017

Quat. res.

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Lacustrine sediments retrieved from Laguna Potrok Aike in the framework of the Potrok Aike Maar Lake Sediment Archive Drilling Project (PASADO) offer the possibility to investigate climate variations of the past~51 cal ka BP in Southern Hemispheric midlatitudes, Argentinean Patagonia. This study focuses on short-term cyclicities in the Ca and magnetic susceptibility data sets between 51 and 15 cal ka BP. The record yields a climate pattern with a periodicity of 1.5 ka during Marine Oxygen Isotope Stage 2 (MIS 2) detected in the Southern Hemisphere from 31 to 17 cal ka BP for the first time. MIS 2 is known for constantly cold temperatures, whereas prominent climate variations paced by a 1.5 ka periodicity occurred during MIS 3. Our study documents that minor latitudinal oscillations of the Southern Hemispheric westerlies and the polar easterlies with a 1.5 ka periodicity also took place during MIS 2. However, we assume that because of a major northward displacement of the Southern Hemispheric westerlies, these oscillations did not sufficiently affect the zone of Circumpolar Deep Waters and an increased greenhouse effect by upwelling of CO 2 -rich deep waters did not occur. This mechanism illustrates why prominent climate events fail to appear during MIS 2.

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Section: Site Descriptionmentioning

confidence: 99%

Section: Site Descriptionmentioning

confidence: 99%

Section: Site Descriptionmentioning

confidence: 99%

Section: Site Descriptionmentioning

confidence: 99%

See 2 more Smart Citations

Periodic 1.5 ka climate variations during MIS 2 in the belt of Southern Hemispheric westerlies

Kliem¹,

Baumgarten

Gebhardt

et al. 2017

Quat. res.

Self Cite

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“…2) Lake-sediment cores. Tephra layers can be best preserved in marine or lacustrine environments (Newton et al, 2005;Zolitschka et al, 2006;Horn, 2007: 439;Kutterolf et al, 2007;Schiff et al, 2008). Tephra samples were therefore taken from two lake-sediment cores held at the Smithsonian Tropical Research Institute (STRI) e one east of the Barú crater and one west e to provide a record of representative sediments in the area.…”

Section: Examining Medial Range Tephra In the Archaeological Stratigrmentioning

confidence: 99%

The cultural nature of tephra: ‘Problematic’ ecofacts and artifacts and the Barú volcano, Panamá

Holmberg

2016

Quaternary International

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a b s t r a c tThis paper presents data from archaeological stratigraphy and lacustrine core samples containing tephra from the Barú volcano in western Panama. The discussion seeks to refine the understanding of medial tephra deposits near Barú in relation to the eruption history indicated by geological, palaeoecological, and archaeological data. A primary goal of this fieldwork is the identification and correlation of tephra from major Barú eruptions encountered in archaeological contexts by their lithology, stratigraphic position, and mineralogy without resorting to geochemical fingerprinting. The intention is to develop a cost efficient and reproducible means of utilizing tephra as a chronostratigraphic marker in archaeological contexts and examine the intersection of human life with volcanic events and dynamic environments. Tephra in archaeological contexts can have ambiguous placement between ecofact and artifact, as is the case with a small number of crude tephra sculptures in my excavated material and that of a seminal prior study. While the research project utilizes visible tephra layers, not cryptotephra, by all means the tephra data prove to be cryptic. Engagement with the imperfection entailed in meshing multidisciplinary data sets and different scientific communities with interests in tephra, particularly in lesser studied regions, is posited as a 'total' view of tephra.

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Refinement of the tephrostratigraphy straddling the northern Patagonian Andes (40–41°S): new tephra markers, reconciling different archives and ascertaining the timing of piedmont deglaciation

Alloway

Pearce

Moreno

et al. 2021

J Quaternary Science

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We describe the stratigraphy, age, geochemistry and correlation of tephra from west to east across the northern Patagonian Andes (c. 40-41°S) with a view to further refining the eruptive history of this region back to the onset of the Last Glacial Termination (~18 cal. ka). Eastwards across the Andes, rhyodacite to rhyolitic tephra markers of dominantly Puyehue-Cordón Caulle source are persistently recognised and provide a stratigraphic context for more numerously erupted intervening tephra of basalt to basaltic-andesite composition. Tephra from distal eruptive centres are also recognised.West of the Andean Cordillera, organic-rich cores from a small closed lake basin (Lago Pichilafquén) reveal an exceptional high-resolution record of lowland vegetation-climate change and eruptive activity spanning the last 15 400 years. Three new rhyodacite tephra (BT6-T1, -T2 and -T4) identified near the base of the Pichilafquén record, spanning 13.2 to 13.9 cal. ka BP, can be geochemically matched with correlatives in basal andic soil sequences closely overlying regolith and/or basement rock. The repetitiveness of this tephrostratigraphy across this Andean transect suggests near-synchronous tephra accretion and onset of up-building soil formation under more stable (revegetating) ground-surface conditions following rapid piedmont deglaciation on both sides of the Cordillera by at least ~14 cal. ka BP.

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Crater lakes of the Pali Aike Volcanic Field as key sites for paleoclimatic and paleoecological reconstructions in southern Patagonia, Argentina

Cited by 105 publications

References 42 publications

Periodic 1.5 ka climate variations during MIS 2 in the belt of Southern Hemispheric westerlies

Periodic 1.5 ka climate variations during MIS 2 in the belt of Southern Hemispheric westerlies

The cultural nature of tephra: ‘Problematic’ ecofacts and artifacts and the Barú volcano, Panamá

Refinement of the tephrostratigraphy straddling the northern Patagonian Andes (40–41°S): new tephra markers, reconciling different archives and ascertaining the timing of piedmont deglaciation

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