Mid-Holocene paleoenvironments in Northwestern Argentina: Main patterns and discrepancies

Eolian depositional phases during the past 50 ka and inferred climate variability for the Pampean Sand Sea, western Pampas, Argentina

“…These episodes of heightened hydrologic excess are often associated with large melt-water releases into the North Atlantic Ocean from the Laurentide ice sheet, e.g. Heinrich events (Heinrich, 1988), that displaced southward and westward monsoonal sources of precipitation for South America (Markgraf, 1989;Villagr an and Varela, 1990;Sandweiss et al, 1999;Jenny et al, 2002;Abbott et al, 2003;Zech et al, 2009;Placzek et al, 2009;Blard et al, 2011;Tchilinguirian and Morales, 2013). It is unknown if this late Pleistocene precipitation variability penetrated to the western Pampas, near 35 S, and impacted eolian deposition processes.…”

Environmental trends between 2400 and 1200 BP in Barrancas, Argentinean Puna: Impacts on local resource variability and socioeconomic organization

“…Ecological affinities of diatoms were obtained from Lowe (), De Wolf (), Vas and De Wolf () and Van Dam, Mertens, and Sinkeldam (), and specific papers about several taxa (e.g., Levkov, Metzeltin, & Pavlov, ). As in previous works, (e.g., Morales, Bustos, & Maidana, ; Tchilinguirian & Morales, ) our general paleoenvironmental interpretations rest on a moisture index, based on a ratio of diatom life‐form affinities (i.e., benthic + epiphitic + planktonic/aerophiles).…”

Continuidades E Hiatos Ocupacionales Durante El Holoceno Medio en El Borde Oriental De La Puna Salada, Antofagasta De La Sierra, Argentina

“…a.p.) (Grosjean et al 1997; (Olivera et al 2004(Olivera et al , 2006Tchilinguirian 2009;Tchilinguirian y Morales 2013;Tchilinguirian et al 2007).…”

“…(6.200-4.500 a.p.). Es muy probable que esto esté correlacionado con los ciclos de aridez detectados localmente en Laguna Colorada y en regiones aledañas (Grosjean et al 2007;Núñez et al 1999;Tchilinguirian y Morales 2013;Tchilinguirian et al 2007;Valero-Garcés et al 2000, entre otros).…”

“…(6.000 a.p.) (Tchilinguirian y Morales 2013;Tchilinguirian et al 2007). Pero a diferencia de Quebrada Seca 3, donde los fechados radiocarbónicos muestran pequeños hiatos durante el Holoceno Medio, Cueva Salamanca 1 registra ocupaciones reiteradas en un período de 1.000 años calendáricos (700 años radiocarbónicos), comenzando con su ocupación inicial ca.…”