María Luisa Machain-Castillo

Universidad Nacional Autónoma de México

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Ana Carolina Ruíz-Fernández

Universidad Nacional Autónoma de México

Joan-Albert Sánchez-Cabeza

Universidad Nacional Autónoma de México

María Teresa Ramírez‐Herrera

Universidad Nacional Autónoma de México

Eric Tappa

University of South Carolina

Robert C. Thunell

University of South Carolina Sumter

Avto Goguitchaichvili

Universidad Nacional Autónoma de México

Néstor Corona

Centro de Epilepsia y Neurocirugía Funcional

Arturo Carranza‐Edwards

Universidad Nacional Autónoma de México

Marcelo Lagos

Pontificia Universidad Católica de Chile

John S. Armstrong‐Altrin

Universidad Nacional Autónoma de México

Cooperative Institutions

Universidad Nacional Autónoma de México

101

Consejo Superior de Investigaciones Científicas

Institut de Ciències del Mar

University of South Florida St. Petersburg

Instituto de Geofísica y Astronomía

College of Marin

Texas A&M University

Centre National de la Recherche Scientifique

University of South Carolina

Universidad Autónoma del Carmen

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Do slow slip earthquakes inhibit catastrophes? Geologic evidence from the Guerrero segment, Mexican subduction zone

Research Square (Research Square) (2023)

María Teresa Ramírez‐Herrera Jan Černý Néstor Corona Krzysztof Gaidzik Daisuke Sugawara

Abstract Globally, the largest tsunamigenic earthquakes have occurred along subduction zones. The Mw>9 devasting events in Chile, Sumatra, and Japan struck in areas where no instrumental records reported similar events. The one-thousand kilometer-long Mexican subduction zone (MSZ), where the Rivera-Cocos plates subduct under the North American plate, has no records of events of such magnitude. Historical and geologic evidence suggests the occurrence of a Mw8.6 tsunamigenic earthquake in the MSZ. However, the Guerrero segment (GS) has not experienced a large event in over 100 years. Several hypotheses have been proposed to explain this, e.g., slow slip events (SSEs) and the rheology of this segment favoring slow slip over rapid slip. However, none of these hypotheses have been confirmed with evidence. Here, we show geologic evidence that reveals a ca. 2000-year history of large tsunamigenic earthquakes and demonstrate that a Mw>8 event occurred ca. AD 1300 in this segment of the MSZ, indicating a long and variable earthquake recurrence (> 700 years). This evidence prompts the assessment of earthquake and tsunami potential using long-term evidence combined with instrumental observations along the MSZ and other subduction zones.

Historical record

10.21203/rs.3.rs-2913656/v1

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Extreme Wave Deposits On The Pacific Coast Of Mexico: Tsunamis Or Storms? - A Multi-Proxy Approach

AGU Fall Meeting Abstracts (2011)

María Teresa Ramírez‐Herrera Marcelo Lagos Ian Hutchinson V. Kostoglodov María Luisa Machain-Castillo

Extreme wave deposits on the Pacific coast of Mexico: Tsunamis or storms? — A multi-proxy approach Maria-Teresa Ramirez-Herrera ⁎, Marcelo Lagos , Ian Hutchinson , Vladimir Kostoglodov , Maria Luisa Machain , Margarita Caballero , Avto Goguitchaichvili , Bertha Aguilar , Catherine Chague-Goff , James Goff , Ana-Carolina Ruiz-Fernandez , Modesto Ortiz , Hector Nava , Francisco Bautista , Gloria I. Lopez , Patricia Quintana l

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Hypoxia in surface coastal waters at the entrance of the Gulf of California and its relation to coastal upwelling

Carlos Alberto Herrera Becerril Joan-Albert Sánchez-Cabeza Andrea Rebeca Lara Len Felipe lvarez Snchez María Luisa Machain-Castillo

Hypoxia

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Citations (1)

Ecological Succesion of Planktonic Foraminifera During Upwelling and Non-upwelling Conditions in the Gulf of Tehuantepec

AGUFM (2008)

María Luisa Machain-Castillo X. A. Nava Gabriela Rosiles González F. Raúl Gío-Argáez Robert C. Thunell

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Last Glacial Maximum deep water masses in southwestern Gulf of Mexico: Clues from benthic foraminifera

Boletín de la Sociedad Geológica Mexicana (2010)

María Luisa Machain-Castillo F. Raúl Gío Argáe L. Bárbara Cuesta Castillo Javier Alejandro Alcalá Herrera Barun K. Sen Gupta

The repercussions of climate change during the Last Glacial Maximun (LGM) associated with changes in the structure and chemistry of abyssal waters in the southwestern Gulf of Mexico were studied by numerical analysis of benthic foraminiferal data from three sediment cores (water depth 1988-2735 m).In this context, to better understand the distribution patterns of modern benthic foraminifera in bathyal and abyssal waters of the area, species data from twelve core-tops (water depth 960-3255 m) were also analyzed.Multivariate Q-mode factor analysis separated the modern foraminiferal faunas of the North Atlantic Deep Water (NADW, deeper than ~2000 m), dominated by Nuttallides decorata, Alabaminella turgida, Ioanella tumidula, and Globocassidulina subglobosa, from those of the shallower Subantarctic Intermediate Water (AAIW) and Caribbean Midwater (CMW), characterized by the association of Bolivina lowmani, Bulimina aculeata, Alabaminella turgida, Globocassidulina subglobosa, Epistominella exigua, and E. vitrea.Although most of the species are found in the entire stratigraphic interval studied, detailed examination shows differences between the dominant LGM and Holocene assemblages, which can be traced to climate-related modifications in world ocean circulation in the LGM, particularly those of NADW.During LGM, Alabaminella turgida (a species sensitive to oxygen depletion) along with a group of dissolution-prone species such as Biloculinella irregularis and Cornuloculina inconstans, thrived in the deepest part of the study area, indicating well-oxygenated waters of glacial NADW (GNADW).As the production of GNADW ceased in the Holocene, the deep areas in the Gulf were occupied by the present NADW that contains less oxygen and more CO 2 .This water mass is more corrosive and precluded the presence of dissolution-prone species during the LGM, except in the most calcium carbonate-and oxygen-rich areas next to the Yucatan platform.Conditions in this area allowed the proliferation of Nuttallides decorata during the Holocene, while the N. decorata and Alabaminella turgida populations decreased in the western Gulf.

Last Glacial Maximum

10.18268/bsgm2010v62n3a9

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Heavy metal contamination and provenance of sediments recovered at the Grijalva River delta, southern Gulf of Mexico

Journal of Earth System Science (2021)

Martha Patricia Ayala-Pérez John S. Armstrong‐Altrin María Luisa Machain-Castillo

Dry season

Silt

Rare-earth element

10.1007/s12040-021-01570-w

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Citations (38)

Diatom-based paleoproductivity and climate change record of the Gulf of Tehuantepec (Eastern Tropical Pacific) during the last ~500 years

The Holocene (2023)

Laura Almaraz-Ruiz María Luisa Machain-Castillo Abdelfettah Sifeddine Ana Carolina Ruíz-Fernández Joan-Albert Sánchez-Cabeza

Changes in marine productivity of the last five centuries in the Gulf of Tehuantepec were investigated using a high-resolution record of diatoms, organic carbon (C org ), total nitrogen (TN), Ni/Al, and Cu/Al. The laminated sediments were dated by using 210 Pb and 14 C, with a bayesian age model providing a new Δ R = 247 ± 30 years for the bulk sediment. The Little Ice Age (LIA) (~1500 to ~1858 CE) was characterized by the predominance of cold-water and high productivity diatoms ( Chaetoceros spores, Thalassionema nitzschioides, Lioloma pacificum, Thalassiosira nanolineata, and Rhizossolenia setigera) and high values of geochemical productivity proxies. A transition period (~1860 to ~1919 CE) toward warmer conditions related to the end of the LIA and the beginning of the Current Warm Period (CWP), was indicated by the appearance of warm-water diatoms ( Neodelphineis pelagica, Thalassiosira tenera, and Rhizossolenia bergonii), as well as lower values of C org , TN, Ni/Al, and Cu/Al. The most recent period of the CWP (~1920 CE to today) was characterized by the increased abundance warm-water taxa ( N. pelagica, Cymatodiscus planetophorus, T. tenera, Plagiogramma minus, Nitzschia interruptestriata, and R. bergonii), and by the prevalence of low values of C org , TN, Ni/Al, and Cu/Al. These changes in productivity during the LIA and CWP were likely driven by changes in solar irradiance and the migration of the Intertropical Convergence Zone. This study highlights the spatial extent of the LIA in the Eastern Tropical North Pacific and contributes to the knowledge of the productivity response to climate in tropical regions.

Tenera

Chaetoceros

10.1177/09596836231183057

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Citations (3)

Ostracoda of the terrigenous continental platform of the southern Gulf of Mexico

Springer eBooks (1990)

María Luisa Machain-Castillo Ana María Pérez-Guzmán Rosalie F. Maddocks

Terrigenous sediment

10.1007/978-94-009-1838-2_26

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Citations (7)

Multi-proxy assessment of recent regional-scale events recorded in Southern Gulf of Mexico sediments

Marine Geology (2021)

Patrick Schwing María Luisa Machain-Castillo Gregg R. Brooks Rebekka A. Larson J.N. Fillingham

Sedimentation

Deposition

10.1016/j.margeo.2021.106434

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Citations (4)

A low-cost long-term model of coastal observatories of global change

Journal of Operational Oceanography (2018)

Joan‐Albert Sanchez‐Cabeza León Felipe Álvarez‐Sánchez José Gilberto Cardoso‐Mohedano Edgar Escalante Mancera Misael Díaz-Asencio

The identification and quantification of global change, including climate change, requires long time series of key variables. In this work, the fundamentals and operation of low-cost long-term coastal observatories are described, and preliminary data are shown. The vision is to offer a scientific platform of physicochemical data for at least the next 100 years, what requires establishing sustainable strategies, training human resources, strong institutional support, and long-term funding sources. The network formally operates since 2013 and has generated more than 6 million data points, continuously growing, of which >1.5 million data points are permanently stored and available through a public access web platform. The strategies and methodologies are described and, in the Mazatlan observatory, data recovery and basic statistics of eight environmental variables are presented. During 2015, an extreme El Niño year, marine temperatures increased from the bay to the middle Urias coastal lagoon, were higher than atmospheric temperatures, and showed the impact of a thermal power plant. In surface waters of Mazatlan bay, hypoxic periods were also observed. It is expected that results will foster the development of other projects, and will be useful to the scientific community and decision makers, for a better management of coastal ecosystems worldwide.

10.1080/1755876x.2018.1533723

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Citations (8)