Atlantic Ocean modulated hydroclimate of the subtropical northeastern Mexico since the last glacial maximum and comparison with the southern US

Roy, Priyadarsi D.; Rivero-Navarrete, Axel; Sánchez‐Zavala, José L.; Beramendi‐Orosco, Laura; Muthusankar, G.; Lozano-Santacruz, Rufino

doi:10.1016/j.epsl.2015.11.048

Cited by 25 publications

(41 citation statements)

References 57 publications

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“…In central Texas, δ 18 Ospel variations were interpreted to be closely tied to the δ 18 O signature of the Gulf of Mexico, which is the primary moisture source region [18]. [49]; high pressure over the Laurentide ice sheet (LISH) and a tilted westerly storm track (red dashed line) [4]; more frequent atmospheric river storms along the west coast of North America (ARs) [49]; a weaker North American monsoon (NAM) [50]; weaker Bermuda high (BH) [51] and Caribbean low level jet [52]; and small southward (<1°) shifts in ITCZ position [53].…”

Section: Controls On δ 18 O P and δ 18 O Spelmentioning

confidence: 99%

Speleothem Paleoclimatology for the Caribbean, Central America, and North America

et al. 2019

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Speleothem oxygen isotope records from the Caribbean, Central, and North America reveal climatic controls that include orbital variation, deglacial forcing related to ocean circulation and ice sheet retreat, and the influence of local and remote sea surface temperature variations. Here, we review these records and the global climate teleconnections they suggest following the recent publication of the Speleothem Isotopes Synthesis and Analysis (SISAL) database. We find that low-latitude records generally reflect changes in precipitation, whereas higher latitude records are sensitive to temperature and moisture source variability. Tropical records suggest precipitation variability is forced by orbital precession and North Atlantic Ocean circulation driven changes in atmospheric convection on long timescales, and tropical sea surface temperature variations on short timescales. On millennial timescales, precipitation seasonality in southwestern North America is related to North Atlantic climate variability. Great Basin speleothem records are closely linked with changes in Northern Hemisphere summer insolation. Although speleothems have revealed these critical global climate teleconnections, the paucity of continuous records precludes our ability to investigate climate drivers from the whole of Central and North America for the Pleistocene through modern. This underscores the need to improve spatial and temporal coverage of speleothem records across this climatically variable region.Quaternary 2019, 2, 5 2 of 33 original authors. The challenges found while compiling such data are discussed in [1]. The database archives speleothem oxygen and carbon isotope data, detailed chronologic and analytical information, and important metadata for each cave site and speleothem such as bedrock geology, overburden thickness, and whether cave monitoring was conducted, among other pieces of information that are essential for working with and interpreting speleothem isotope records.Of the 376 records included in SISAL_v1, 42 are from cave sites in Central and North America and the Caribbean [2]. These records cover a vast region, spanning the tropics to mid-latitudes and bordering two oceans, with climate controls that are highly variable both in the modern and through time. Speleothem records from this region have revealed critical climate teleconnections between the polar regions, the tropics, and the mid-latitudes at decadal to orbital timescales [3][4][5][6]. These records have provided evidence for the effects of climate variability on ancient civilizations [7-9], and contributed toward open questions and key debates regarding Earth's climate system [3,10]. Here, we discuss the spatial and temporal coverage of North and Central American and Caribbean speleothem records included in SISAL_v1 and the predominant controls on δ 18 O spel variability in each region. We review the most salient discoveries arising from regional records included in SISAL_v1 and conduct a statistical analysis to underscore observed spatial relationships. O...

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Section: Controls On δ 18 O P and δ 18 O Spelmentioning

confidence: 99%

Speleothem Paleoclimatology for the Caribbean, Central America, and North America

et al. 2019

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“…Proxy climate records from northern Mexico have increased significantly in the last couple of decades (Metcalfe et al, ). Most of these records, however, come from northwest Mexico (Lozano‐García et al, ; Metcalfe et al, ; Ortega‐Rosas et al, , ; Roy et al, , ), with far fewer from the northeast (Roy et al, , ). In many of these records, the nature of transition from the deglaciation into the Holocene remains unclear due to limited dating control, lack of preservation of the biological proxies and depositional hiatuses (Lozano‐García et al, ; Metcalfe et al, ; Roy et al, ).…”

Section: Study Areamentioning

confidence: 99%

Response of arid northeast Mexico to global climate changes during the late Pleistocene to the middle Holocene

Roy

Vera‐Vera

Curtis

et al. 2019

Earth Surf Processes Landf

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Anthropogenic global warming might cause expansion of the drylands and trigger socio-economic challenges in the water-deficit subtropical regions. Changes in hydroclimate during the intervals of variable global temperature over the recent geological past, however, could provide useful information about the possible responses of these arid ecosystems to the near future warmer conditions. We evaluated hydroclimates of two different parts of subtropical North America by generating new records of surface processes and regional vegetation from drought-prone northeast Mexico and subsequently compared them with the paleoclimate of the central-southern United States. Our study suggests that congruent changes occurred in both parts during~13.5-9.5 cal ka BP, an interval with no warm pool in the northern Gulf of Mexico. The precipitation and erosion responded to temperaturemodulated variations in positions of the Inter-Tropical Convergence Zone (ITCZ). Conditions were wetter than today in the subsequent warmer interval (~9.5-8.2 cal ka BP) with generally stable ITCZ and the highest summer insolation. Hydroclimate changes of both parts lacked congruency during~8.2-6.8 cal ka BP as the northern Gulf of Mexico began hosting a warm pool. Similar to the modern conditions, this warm pool might have modified trajectories of the tropical storms. Erosion and abundance of C 3 plants decreased in northeast Mexico. Higher wetness in the Mississippi River Basin and the southern Great Plains during this interval suggested that the storms made landfall more frequently in the central-southern United States.

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“…El calentamiento global antropogénico actual ha incrementado la curiosidad científica para comprender las respuestas de los diferentes ecosistemas, del régimen de precipitación y de la desertificación, ante el cambio climático experimentado en el pasado geológico (Masson-Delmotte et al, 2013). Los cambios estratigráficos en la fraccionación de isótopos estables, el contenido macro y micro fósil y la abundancia de los minerales en los archivos sedimentarios, han sido utilizados para reconstruir el ambiente del pasado y las condiciones paleo-climáticas Hodell et al, 2005; Carillo-Bastos et al, 2010; Torrescano-Valle e Islebe, 2015;Roy et al, 2016). La mayoría de los estudios paleoambientales realizados en la Península de Yucatán están basados en registros fosilizados de polen, pero poco se conoce sobre las concentraciones de elementos inorgánicos de los registros sedimentarios (Islebe y Sánchez, 2002; Carillo-Bastos et al, 2010;Aragón-Moreno et al, 2012; Gutíerrez-Ayala et al, 2012; Torrescano-Valle e Islebe, 2006.…”

Section: Introductionunclassified

“…Anthropogenic global warming of the modern era has increased scientific curiosity to document the responses of different ecosystems and regimes of precipitation and desertification to climate change over the geological past (Masson-Delmotte et al, 2013). Stratigraphic changes of stable isotope fractionation, macro and micro fossil content and abundance of minerals in sedimentary archives have been used to infer past environmental and climatic conditions Hodell et al, 2005;Carillo-Bastos et al, 2010;Torrescano-Valle and Islebe, 2015;Roy et al, 2016). Elemental concentration indirectly estimates abundances of both the allochthonous and autochthonous minerals present in sediment and is less time consuming compared to the analysis of the micro-fossils and relatively less expensive compared to the analysis of stable isotopes.…”

Section: Introductionmentioning

confidence: 99%

“…Over the last decade, several researchers have successfully used concentrations of different elements in lacustrine sediments from distinct geological terrains to reconstruct the Late Quaternary paleoclimate of different parts of Mexico and infer the associated climatic forcings such as the North American Monsoon, El Niño Southern Oscillation, etc. (Metcalfe et al, 2010;Sosa-Najera et al, 2010;Lozano-García et al, 2015;Roy et al, , 2016. Compared to the rest of Mexico, chemical composition of sedimentary archives from the Yucatán Peninsula has received significantly less attention Hodell et al, 2005;Carillo-Bastos et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of elemental concentration in near-surface late Holocene sediments and precipitation regimes of the Yucatán Peninsula (Mexico): a preliminary study

Roy¹,

Torrescano-Valle²,

Escarraga-Paredes³

et al. 2018

Bol. geol. min.

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Paleoclimate research in the Yucatán Peninsula of Mexico has mainly involved fossil pollen preserved in sedimentary archives whilst geochemistry has received limited attention. In this study, we compared concentrations of K, Ti, Fe, Ca and Sr in 35 near-surface late Holocene sediments collected from different permanent and seasonal water bodies across the peninsula with mean annual precipitation of 600-1600 mm in order to explore the relationship between concentrations of inorganic elements and precipitation. The calcareous provenance has a diluting effect and sediments have less K, Ti and Fe (associated with clastics) and more Ca and Sr (associated with carbonate and evaporite) compared to the Upper Continental Crust. Individual elements and ratios of K/Ca, Ti/Ca and Fe/Ca in samples with minimal clastics did not show any relationship with precipitation. Average values of elemental ratios in sediments with more clastics increase as the mean annual precipitation increases. However, the sampling protocol and presence of most of the sampled water bodies being in a single precipitation cluster (i.e. 1200-1400 mm/year) did not allow a complete evaluation of the potential correlation between precipitation and elemental ratios. Considering that the concentration of Ti is low in sediments of the limestone-rich Yucatán Peninsula and Fe is mobile in anoxic depositional environments, the K/Ca ratio can be used as a preliminary proxy to evaluate precipitation in sedimentary records. Comparación de concentración elemental en sedimentos superficiales del Holoceno tardío y los regímenes de precipitación en la Península de Yucatán, México: un estudio preliminarRESUMEN La investigación paleoclimática en la Península de Yucatán (YP) de México involucra principalmente el polen fósil preservado en archivos sedimentarios, mientras que la geoquímica ha recibido menos atención. En este estudio, se compararon las concentraciones de K, Ti, Fe, Ca y Sr, en 35 muestras superficiales de sedimento del Holoceno tardío, colectadas en un gradiente de precipitación entre 600-1600 mm/a, a lo largo de la YP, con el objetivo de establecer un testigo de la paleo-precipitación para la región. El origen calcáreo tiene un efecto de dilución en las concentraciones elementales, provocando que los sedimentos presenten baja cantidad de K, Ti y Fe (elementos asociados con clásticos) y mayor cantidad de Ca y Sr (elementos asociados con carbonato y evaporitas), en comparación con la corteza continental superior. Los elementos individuales y las relaciones de K/Ca, Ti/Ca y Fe/Ca en muestras con cantidades mínimas de clástico, no muestran una relación con la precipitación. Los valores promedio de la relación elemental en sedimentos con más clásticos, muestra tendencias positivas con la precipitación. No obstante, el protocolo de muestreo y la presencia de un mayor número de cuerpos de agua investigados en un simple aglomerado (p. ej. 1200-1400 mm/a) no permitió completar la evaluación de la correlación potencial entre precipitación y la relación elemental. Con...

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Atlantic Ocean modulated hydroclimate of the subtropical northeastern Mexico since the last glacial maximum and comparison with the southern US

Cited by 25 publications

References 57 publications

Speleothem Paleoclimatology for the Caribbean, Central America, and North America

Speleothem Paleoclimatology for the Caribbean, Central America, and North America

Response of arid northeast Mexico to global climate changes during the late Pleistocene to the middle Holocene

Comparison of elemental concentration in near-surface late Holocene sediments and precipitation regimes of the Yucatán Peninsula (Mexico): a preliminary study

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