Alberto C Riccardi

National Scientific and Technical Research Council | conicet

The Toarcian Oceanic Anoxic Event (T-OAE, ~183 Ma) was marked by globally recognized environmental perturbations, most notably disturbances to the global carbon cycle and climate. To date, geochemical records providing information about the T-OAE have been largely generated from the warm temperate climate zone of the NW European realm. Coeval geoch...

Life and works of Axel von Hillebrandt

Resumen Las contribuciones de Moreno al conocimiento de la Patagonia comenzaron con las exploraciones que inicio en 1873 y que se extendieron a los años siguientes, hasta 1880. Luego de la fundación del Museo de La Plata en 1884 tomaron mayor envergadura y aunque los estudios abarcaron desde la Puna hasta Tierra del Fuego, estuvieron mayormente cen...

El Hettangiano-Sinemuriano (Jurásico Inferior) marino en el centro oeste de la Argentina, se halla restringido a la región del río Atuel. Sobre la base de los estudios realizados se ha establecido que la sucesión marina del Jurásico Inferior en esa región se superpone, en transición, a niveles marinos del Triásico Superior, y abarca niveles del Het...

Drilling for the International Continental Scientific Drilling Program (ICDP) Early Jurassic Earth System and Timescale project (JET) was undertaken between October 2020 and January 2021. The drill site is situated in a small-scale synformal basin of the latest Triassic to Early Jurassic age that formed above the major Permian-Triassic half-graben...

Sumarry of the life and achievemetns of E. Feruglio

Biography of Francisco P. Moreno

The biostratigraphically important ammonitina of Sierra de Reyes, southernmost Mendoza province, eastern margin of the central part of the Neuquen Basin are identified and key taxa are illutrated. Sierra de Reyes is a north-south oriented brachyanticline, with a nucleus of Upper Triassic-Lower Jurassic volcanics and continental beds, and Middle-Upp...

Historical development of Invertebrate Paleontology in Arghentina between 1835 and 1955.

Texto parcialmente usado en el artículo publicado por M. Ortale en el Suplemento Séptimo Día del Diario El Día, edición del 28 de mayo de 2023.

The paleontology of invertebrates in the Revista of the Museum of La Plata: 1891-2018. The number and content of the papers published in the Revista del Museo de La Plata (RMLP) on Invertebrate Palaeontology is related to the development of its institutional context. Four periods are recognized: the foundational period (1884 - 1905), the beginning...

Summary of the surveys carried out in relation to applied geology in northern Patagonia, related to the project works developed by Bailey Willis in the area during 1911–1913.

Life and achievements of Dr. N.M. Sabattini, with list of publications

Historical facts related to the Patagonian Indians, especially during the end of the XIX Century and beginning of the XX Century. F.P.Moreno, Mapuches .

F.P. Moreno and the scientific research at the beginning of the La Plata Museum

Memorial to Dr. Nora María Sabattini (1941-2021) with a summary of her life and scientific achievements and a list of her principal publications.

Presentation of the book: "Ideario de Francisco P. Moreno", a selection of writings exposing his ideas on different matters, mostly related to Patagonia.

The Pliensbachian–Toarcian boundary interval is characterized by a ~ 3‰ negative carbon-isotope excursion (CIE) in organic and inorganic marine and terrestrial archives from sections in Europe, such as Peniche (Portugal) and Hawsker Bottoms, Yorkshire (UK). A new high-resolution organic-carbon isotope record, illustrating the same chemostratigraphi...

The Arroyo Malo Formation represents the first marine ingression during the Late Triassic in the Neuquén Basin, west-central Argentina. The presence of calcareous nannofossils in this unit provides independent age constraint of a late Norian to Rhaetian age for its lower and middle parts, in agreement with known fossil invertebrates. Furthermore, t...

Biography and scientific works of A.v. Hillebrandt

History of Invertebrate Paleontology in Argentina: 1835-1955

The Arroyo Malo Formation represents the first marine ingression during the Late Triassic in the Neuquén Basin, west-central Argentina. The presence of calcareous nannofossils in this unit provides independent age constraint of a late Norian to Rhaetian age for its lower and middle parts, in agreement with known fossil invertebrates. Furthermore, t...

Microfossils and ammonites from the Vaca Muerta Formation (Upper Jurassic - Lower Cretaceous), Neuquén, Argentina.

The Pliensbachian–Toarcian boundary interval is characterized by a ~3‰ negative carbon-isotope excursion (CIE) in organic and inorganic marine and terrestrial archives from sections in Europe, such as Peniche (Portugal) and Hawsker Bottoms, Yorkshire (UK). A new high-resolution organic-carbon isotope record, illustrating the same chemostratigraphic...

Moreno in the advance of the knowledge of Patagonia. Moreno contributions to the knowledge of Patagonia, began in 1873 with his first exploratory trips and continued in the following years, until 1880. After the creation of the La Plata Museum, they became more important and although covering the Andean region between Puna and Tierra del Fuego, th...

History and development of the Invertebrate Palaeozoology Division in the La Plata Museum (1884-2021) Updated version of: Riccardi, A. C., 1982-1984. Pasado y Presente de la División Paleontología Invertebrados. Novedades del Museo de La Plata, 1(6), p. 52, 55; 1(7), p. 62).

Memorial to Dr. Carlos María Urien (1934-2020) with a summary of his life and scientific achievements and a list of his principal publications.

In part 1 of this work we discussed the possibilities for the selection of a GSSP for the Berriasian Stage of the Cretaceous System, based on prevailing practical methods for correlation in that J/K interval, traditional usage and the consensus over the best boundary markers that had developed in the last forty years. This consensus has developed f...

Comment published in Spanish on the 2020 Extraordinary Session of the IUGS – IGC Council 28 – 30 October 2020 (virtual meeting) Asociación Geológica Argentina, Boletín Brackebuschiano, 2: 7-8.

Relevance of fossil invertebrates in the building of the International Chronostratigraphic Chart.

Memorial to Dr. Michael R. A. Thomson (1942-2020) with a summary of his life and scientific achievements and a list of his publications..

This contribution aims to highlight the contributions made in the field of the history of geology of Argentina and thereby to pay tribute to its authors. The study of the history of geology is closely linked to the characteristics of the same discipline, both in terms of its objectives and its methodology. Perhaps that is why most of those who have...

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Bailey Willis: a yanqui geologist and the development of northern Patagonia.

Here in the first part of this publication we discuss the possibilities for the selection of a GSSP for the Berriasian Stage of the Cretaceous System, based on the established methods for correlation in the Tithonian/Berriasian interval. This will be followed, in the second part, by an account of the stratigraphic evidence that justifies the locali...

La Manga Formation is a vast carbonate system developed in the Neuquén Basin. The age is based in ammonite faunas, ranging from Early Callovian (Bodenbenderi-Proximum Zone) to Middle Oxfordian (Cordatum Standard Zone to Transversarium Standard Zone, and probably to the lower part of the Bifurcatus Standard Zone). A stratigraphical and sedimentologi...

This book includes a selection of passages and phrases, from the writings of Francisco P Moreno (1852-1919), that may be of interest to the contemporary reader or scholar. Moreno's thought is presented, taken from his own words. Moreno speaks to us through his texts, many of which come from unpublished pages he was writing in the last years of his...

Ideas of Francisco P. Moreno This book includes a selection of passages and phrases, from the writings of Francisco P Moreno (1852-1919), that may be of interest to the contemporary reader or scholar. Moreno's thought is presented, taken from his own words. Moreno speaks to us through his texts, many of which come from unpublished pages he was wri...

The Sierra de Reyes is a north-south brachyanticline, with a nucleus of Upper Triassic-Lower Jurassic volcanics, and Middle-Upper Jurassic marine strata on its western and eastern limbs. The Jurassic marine succession, below the limestones and gypsum of the La Manga and Auquilco formations, has a thickness between c. 75 and 310 m and consists of ye...

Since 2009 the Berriasian Working Group (ISCS, ICS) has been searching for the best sequence globally to represent the Tithonian/Berriasian (Jurassic/Cretaceous) boundary. To take this forward, it has made field assessments of more than sixty localities, documenting their sequences, fossil biotas and magnetostratigraphy. Only on such a sound factua...

The section of Arroyo Alumbre, in the Rio Atuel area, Mendoza province, west central Argentina, consists of a c. 300 m thick continuous succession of uppermost Triassic and basal Jurassic strata, ascribed to the Arroyo Malo Formation. The lower half of the sequence contains a succession of levels with different taxa, from base, Rhabdoceras suessi H...

Origin and development of geological teaching in the La Plata National University. Until 1906, the year in which the Museum of La Plata became part of the National University of La Plata (UNLP) and the School of Geology was created, the institution had been a provincial organization with a national scope, focused on exploration, research and public...

We describe here the life and career of geologists who beyond their nationality (Russian, Ukrainian, Tatar, German, etc.), were born on the territory of the Russian Empire, the Soviet Union or the Russian Federation and their descendants that became geologists, all of whom lived and worked in Latin-American countries (where Spanish and Portuguese l...

50 days free link: https://authors.elsevier.com/a/1XF8BiVLD1LbQ Late Aptian – early Albian ammonoids of southern Patagonia are described. They are represented by Carinophylloceras collignoni Klinger, Wiedmann and Kennedy, Phyllopachyceras reymenti sp. nov., Tetragonites heterosulcatus Anthula, Anagaudryceras sacya (Forbes), Puzosia cf. rectecostat...

Existence of marine upper Triassic and lowermost Jurassic strata was first recorded in the Andes of Argentina in 1986 (cf. Riccardi et al., 1988, 1991, 1997) at arroyo Alumbre, in the rio Atuel area, Malargue province. The section, exposed in an anticline nucleus, consists of a c. 300 m thick continuous succession of uppermost Triassic and basal Ju...

Biographical sketch of Francisco Pascasio Moreno. A summary of the most important contributions of Francisco Pascasio Moreno (1852-1919) to geographical exploration, natural sciences, public parks and popular education.

History of oil exploration in Argentina. Reproduction of a conference delivered at the Academia Nacional de Ciencias de Buenos Aires on June 30, 2015 (see under year 2015).

Origen y desarrollo de la enseñanza de la Geología en la Universidad Nacional de La Plata entre 1906 y 2010

Conference on Francisco Pascasio Moreno, delivered on occasion of the 30 anniversary of the La Plata Museum Foundation at the Colegio de Abogados (La Plata)

Joaquín Frenguelli was born in Rome, Italy in 1883 and died in Santa Fe, Argentina in 1958. After receiving his PhD in medicine from Rome University, he moved to Argentina in 1911 and worked as a medical doctor in the cities of Santa Fe and Córdoba until 1929. From 1920 until 1933 he was a professor of geology at the Littoral National University. I...

The contributions of the La Plata Museum to the geology of Argentina began following the exploratory trips of its founder, F.P. Moreno, in the 1870s. The geological expeditions of the La Plata Museum started in the 1880s and covered the Andean region, although they were focused in the Patagonian Andes. They became more important from 1893 when they...

Enrico Fossa Mancini: significance and relevance of his geologic work. Fossa Mancini was born in Jesi, Ancona, in 1884, studied at the Universities of Perugia and Rome and graduated in Natural Sciences in Pisa with a thesis on Jurassic ammonites. After participating in the Great War he worked for the Italian Geological Survey and published on issu...

Geological research in the La Plata Museum: 1906-1966. Between 1884 and 1905, under the direction of Francisco P. Moreno the La Plata had a clear national projection and was protagonist of the development of the geographical and geological knowledge of different parts of the country, especially in Patagonia. In 1905 the La Plata Museum became part...

The history of Geology in Argentina bicentennial. This volume includes works submitted to the 4th Argentinean Congress on the History of Geology (ivcahgeo), which was held in the city of La Plata, between September 15 and 16t, 2016. The Congress had about 60 participants, mostly from Argentina, but including a few representatives from Chile and Uru...

Fossa Mancini nació en Jesi, Ancona, en 1884, estudió en las Universidades de Perugia y Roma y se graduó en Ciencias Naturales en la de Pisa con una tesis sobre amonites del Jurásico. Luego de participar en la Gran Guerra trabajó para el Servicio Geológico de Italia y publicó en temas de paleontología, sedimentología, hidrogeología y geología aplic...

Entre 1884 y 1905, bajo la dirección de Francisco P. Moreno el Museo de la Plata tuvo una clara proyección nacional y fue protagonista del desarrollo del conocimiento geográfico y geológico de diferentes partes del país, especialmente de la Patagonia. En 1905 pasó a integrar la Universidad Nacional de La Plata, situación que determinó la renuncia d...

Memorial to Dr. Jorge Sahade (1915-2012) with a summary of his life and main scientific achievements.

Obituary for Professor Robin Charles Whatley with a summary of his life and scientific achievements and list of his publications.

Welcome words by A.C. Riccardi, President of the IV Argentine Congress on the History of Geology, La Plata, September 15 of 2016

Coleoid specimens from the Jurassic of northern Chile are included in two different species of Trachyteuthis , i.e., T. covacevichi Fuchs and Schultze, 2008 and T. chilensis n. sp., and in a new genus and a new species, Pseudoteudopsis perezi n. gen. n. sp. The specimens described and figured are from two different areas in northern Chile. Those re...

Manuscrito inédito, preparado en 2015 para el Diccionario histórico de las ciencias de la Tierra en la Argentina (Archivo Histórico del Museo de La Plata, 2016, Prohistoria Ediciones) y parcialmente publicado en dicha obra, en capítulos separados por decisión de sus editores. Resumen: El desarrollo de los estudios geológicos a nivel institucional...

El 14 de octubre de 2015 se reunió el Comité Argentino de Estratigrafía (CAE), con la presencia de sus miembros. En la oportunidad se consideró la necesidad de acordar los términos cronoestratigráficos (y geocronológicos), correspondientes a la Escala Cronoestratigráfica Internacional, para su uso en la Argentina. Para ello se tuvo en cuenta la tra...

The Toarcian oceanic anoxic event (T-OAE) is recorded by the presence of globally distributed marine organic carbon– rich black shales and a negative carbon isotope shift, with δ13Corg values as low as -33‰, interrupting an overarching positive excursion. Here we present new biostratigraphic data and high-resolution δ13Corg data from two Southern H...

Historical development of oil exploration in Argentina, 1885-1950. Texto originalmente redactado como parte integral de un manuscrito inédito titulado “Panorama histórico integral de las instituciones dedicadas a la geología en la Argentina, ca. 1880-1950”, algunas de cuyas secciones fueron publicadas en forma separada por decisión de los editores...

Synthesis of the history of the Geological Survey of Argentina, 1885-1950. Texto originalmente redactado como parte integral de un manuscrito inédito titulado “Panorama histórico integral de las instituciones dedicadas a la geología en la Argentina, ca. 1880-1950”, algunas de cuyas secciones fueron publicadas en forma separada por decisión de los e...

Synthesis of the history of geological investigations at the Museum of La Plata and the Public Museum / National Museum of Buenos Aires, 1862-1950. Texto originalmente redactado como parte integral de un manuscrito inédito titulado “Panorama histórico integral de las instituciones dedicadas a la geología en la Argentina, ca. 1880-1950”, algunas de...

Synthesis of the history of the Coal and Oil State Companies in relation to geological studies in Argentina,1922-1950. Texto originalmente redactado como parte integral de un manuscrito inédito titulado “Panorama histórico integral de las instituciones dedicadas a la geología en la Argentina, ca. 1880-1950”, algunas de cuyas secciones fueron public...

Synthesis of the history of the National Academy of Sciences in relation to the development of geological studies in Argentina,1868-1950. Texto originalmente redactado como parte integral de un manuscrito inédito titulado “Panorama histórico integral de las instituciones dedicadas a la geología en la Argentina, ca. 1880-1950”, algunas de cuyas secc...

Synthesis of Argentina geological explorations for strategic minerals, developed by the "Dirección General de Fabricaciones Militares", 1941-1950. Texto originalmente redactado como parte integral de un manuscrito inédito titulado “Panorama histórico integral de las instituciones dedicadas a la geología en la Argentina, ca. 1880-1950”, algunas de c...

Unpublished obituary written in 2008, with information on the life and professional and scientific achievements of Professor Amos Salvador

Status and correlation of Andean ammonite biozones are reviewed. Available calpionellid, nannofossil, and radiolarian data, as well as radioisotopic ages, are also considered, especially when directly related to ammonite zones. There is no attempt to deal with the definition of the Jurassic–Cretaceous limit. Correlation of the V. mendozanum Zone wi...

Studies of the Museo de La Plata on fossil invertebrates from the Malvinas and Antartic region (1952-2012).- Studies carried out by the Museo de La Plata between 1952 and 2012 on the invertebrate paleontology of the "Territory de Tierra del Fuego, Islas del Atlántico Sur y Antártida" were few and focused on upper Cenozoic radiolarians from the Pl...

Historical development of oil exploration in Argentina. The existence of oil in western and northwestern Argentina has been known since the XVIII Century. Between 1865 and 1907 oil exploration was carried out by 14 companies, most of them of Argentinean ownership, which until 1906 had drilled 57 and 46 wells, respectively, in both areas. Scientific...

The Callovian-Oxfordian of the Neuquén Basin (Argentina) is characterized by an extensive marine carbonate system (La Manga Formation) with a predominance of shallow and middle ramp deposits, although locally in tectonically controlled settings, deeper deposits also formed. These middle Oxfordian deeper deposits consist of mudstone-wackestone carbo...

Geoparks, significance and needs for their development in Argentina: Main Geopark characteristics are reviewed, as defined in the context of the criteria established by Unesco for the Global Geparks Network (GGN), stressing the importance of the issue not only from the point of view of promotion and protection of geological sites but of the signifi...

The Vaca Muerta Formation (early Tithonian-early Valanginian) is a rhythmic succession of marls and lime-stones, cropping out in the Neuquén Basin, west-central Argentina. This lithostratigraphic unit was traditionally interpreted as basinal to slope deposits. Detailed facies analysis allows to differentiate seven facies associations, representing...

Pictetia representatives from southern Patagonia and James Ross Island, Antarctica, are described. They are represented by Pictetia astieriana (d'Orbigny ) and Pictetia ovalis Collignon, the first coming from the Pictetia Zone of Antarctica (≈ Tardefurcata Zone) and the second from the Aioloceras rollerii Zone of Patagonia (≈ Mammillatum Standard S...

Nací en Buenos Aires el 18 de junio de 1942 y viví en la Patagonia hasta los 9 años. Parte del colegio primario y el secundario los hice en Buenos Aires. Me gradué de Licenciado en Geología y de Doctor en Ciencias Naturales (Orientación Geología) en la Universidad Nacional de La Plata (UNLP), donde comencé a ejercer la docencia, ingresando posterio...

THE LA PLATA MUSEUM: ITS TRANSFORMATION IN A HIGHER EDUCATION INSTITUTION. THE La Plata Museum of Natural Sciences was created in 1884 and since then it underway a number of changes that allow to evaluate differences in institutional organization. Between 1884 and 1905 the Museum was a provincial dependence with a national projection, focused in ex...

The Callovian-Oxfordian of the Neuquén Basin (Argentina) is characterized by an extensive marine carbonate system (La Manga Formation) with a predominance of shallow and middle ramp deposits, although locally in tectonically controlled settings, deeper deposits also formed. These middle Oxfordian deeper deposits consist of mudstone-wackestone carbo...

Mesa Redonda sobre Geoética (Teleconferencia)

JOAQUÍN FRENGUELLI: LIFE AND SCIENTIFIC WORK. Joaquin Frenguelli was born in Rome, Italy in 1883, and passed away in Santa Fe, Argentina in 1958. After receiving his degree in medicine from the University of Rome he moved to Argentina in 1911, and until 1929 he worked as a medical doctor in Santa Fe and Córdoba. Since 1920 until 1933 he was Profess...