Geology and geochemistry of deformed granites from the Querari Complex, Rio Negro Province, NW-Amazonian Craton, Brazil by Paulo Jerry Bentes Gomes, Rielva Solimairy Campelo do Nascimento, Renata da Silva Veras, Marcelo Esteves Almeida, Marcia Caroline Rodrigues Carneiro

“…The Querari Complex corresponds to the basement rocks from Uaupés Domain and represents one of the least studied units in the northwest of the Rio Negro Province, Amazonian Craton. In this paper, we present new field geology, petrographic, and geochemical data of deformed granites from the Querari Complex. …”
Get full text

Post-collisional 1.75 Ga mantle-derived felsic magmatism in the Cauaburi Orogeny, NW Amazon Craton, Brazil by Marcelo Almeida, Moacir José Buenano Macambira, Túlio Amós de Araújo Mendes, João Orestes Schneider Santos

Subjects: “…Rio Negro Province…”
Get full text

Triassic pentadactyl tracks from the Los Menucos Group (Río Negro province, Patagonia Argentina): possible constraints on the autopodial posture of Gondwanan trackmakers by Paolo Citton, Ignacio Díaz-Martínez, Silvina de Valais, Carlos Cónsole-Gonella

Get full text

Combined U-Pb SHRIMP and Hf isotope study of the Late Paleozoic Yaminué Complex, Rio Negro Province, Argentina: Implications for the origin and evolution of the Patagonia composite terrane by Carlos J. Chernicoff, Eduardo O. Zappettini, João O.S. Santos, Neal J. McNaughton, Elena Belousova

Get full text

High-resolution analysis of an erg-margin system from the cretaceous Candeleros Formation (La Buitrera Paleontological Area, Río Negro Province, Argentina): an approach to different scales fluvial-aeolian interactions by Joaquín Pérez Mayoral, Agustín Argüello Scotti, Sebastián Apesteguía, Gonzalo D. Veiga

Get full text

High-resolution analysis of an erg-margin system from the cretaceous Candeleros Formation (La Buitrera Paleontological Area, Río Negro Province, Argentina): an approach to different scales fluvial-aeolian interactions by Joaquín Pérez Mayoral, Agustín Argüello Scotti, Sebastián Apesteguía, Gonzalo D. Veiga

Get full text

Rasgos Geoquímicos de las Calizas de la Formación Arroyo Verde (Eoceno), en Punta Colorada. Provincia de Río Negro. Argentina: Reconstrucción Paleoambiental Geochemical features of limestones in Arroyo Verde Formation (Eocene) in Punta Colorada. Río Negro Province. Argentina: Palaeoenvironmental reconstruction by Liliana Luna, Roberto Schillizzi, Renzo Bonuccelli

“…<br>The fast growing cement industry has reactivated the exploration for calcareous materials in southern Argentina.A carbonatic deposit is found in Punta Colorada, located 36 km from the town of Sierra Grande, Río Negro Province. These rocks, deposited during a Late Cretaceous - Early Tertiary marine ingression, belong to Arroyo Verde Formation (Early Eocene). …”
Get full text

Estructuras de deformación (¿sismitas?) en la Formación Río Negro, provincia de Río Negro, Argentina by Roberto Schillizzi, Liliana Luna, Juan Ignacio Falco

Subjects: Get full text

OSTRACODOS DE LA FORMACION ÑIRIHUAU (OLIGOCENO), CUENCA DE ÑIRIHUAU-ÑORQUINCO-CUSHAMEN: SIGNIFICADO PALEOAMBIENTAL by Alwine Bertels, Gabriela C. Cusminsky

“…KEY WORDS. Argentina. Río Negro Province. Ñirihuau Formation. Oligocene. Ostracoda. …”
Get full text

Digenea, Strigeidae, Australapatemon canadensis Dubois and Rausch, 1950: first record in South America and a new host record by Fabiana Drago, Lía Lunaschi

“…Australapatemon canadensis Dubois and Rausch, 1950 (Digenea, Strigeidae) is reported parasitizing to Cygnus melancoryphus (Molina) (Anatidae) from Lacombe Lagoon, Buenos Aires Province and Pellegrini Lake Río Negro Province, Argentina. This species is described and compared with related species. …”
Get full text

Anthropogenic Factors Control the Distribution of a Southern Conifer <i>Phytophthora</i> Disease in a Peri-Urban Area of Northern Patagonia, Argentina by Guillermo Giordana, Thomas Kitzberger, Ludmila La Manna

“…The study was developed in urban and suburban areas of San Carlos de Bariloche county (Río Negro Province, Argentina). A database of requests to fell <i>A. chilensis</i> trees, from the Forest Department of Río Negro Province, was cleaned up and improved through satellite images analysis and field sampling. …”
Get full text

Present Characteristics of Northwestern Patagonia (Argentina) by Edgardo Salaverry, Olga E. Scarpati, Yamile Puga, Alberto D. Capriolo, Veronica Pohl Schnake, Maria I. Botana

“…Twenty-eight percent of the Andean—patagonic forests are in the Río Negro province, while Neuquén province has 9% and Chubut province has 26%. …”
Get full text

Southernmost finding of Lymnaea viatrix orbigny, 1835 (Pulmonata: Lymnaeidae), intermediate host of Fasciola hepatica (Linnaeus, 1758) (Trematoda: Digenea), in urban and rural area... by Florencia Kleiman, Silvia Pietrokovsky, W Lobato Paraense, Cristina Wisnivesky-Colli

“…Ninety snails were collected during year 2000, from a concrete pond at a Public Square in El Bolsón Village, Río Negro province, and 811 snails in November 1999, and during 2000 from waterbodies within a farm at Cholila locality, Chubut province. …”
Get full text

The Study of lithic assemblages on deflation surfaces. The case study of Arroyo Verde, Northern Patagonia coast, Argentina by Eugenia Carranza

“…This paper focuses on surface lithic artefacts from Holocene coastal hunter gatherer occupations of Arroyo Verde archaeological locality (Rio Negro province, Northern Patagonia, Argentina). The study of lithic assemblages collected at a deflation surface surrounded by stabilised sand dunes near the coastline, shows that wind produce significant corrasion (wind abrasion) of artefacts and affects preservation of small and medium size artefacts. …”
Get full text

Los incendios en el noroeste de la Patagonia: su relación con las condiciones meteorológicas y la presión antrópica a lo largo de 20 años by Mónica I. de Torres Curth, Luciana Ghermandi, Gabriela Pfister

“…An eighty-five percent of the burned area in Patagonia occurred in Rio Negro province, and only 0.3% of that area in Bariloche. …”
Get full text

South American Sea Lions Otaria flavescens, a good indicator of relative spatial and temporal changes in the distribution and abundance of marine resources? by Ana Harrington, Gustavo A. Daneri, Esperanza A. Varela, Alejandra V. Volpedo

“…Furthermore, this study reports for the first time the feeding habits of the South American Sea Lion colony of Promontorio Belén, second in population size of Río Negro province.…”
Get full text

De militantes culturales y sueños colectivos: El Teatro del Bajo y el diario Río Negro (Neuquén, 1982-83) Cultural activists and collective dreams: Teatro del Bajo and Río Negro ne... by Griselda Fanese

“…The objective is to determine what representations of Teatro del Bajo were spread by the Río Negro newspaper, and how they affected the readers' imagination in the cultural context that cities in the Alto Valle (an Argentine region that covers the East of Neuquén Province and the North-West of Río Negro Province) experienced during the years under study.…”
Get full text

Molecular Detection of <i>Candidatus</i> Rickettsia andeanae and <i>Ehrlichia</i> sp. in <i>Amblyomma pseudoconcolor</i> Aragão, 1908 (Acari: Ixodidae) from the Argentinian Patagon... by Patrick Stephan Sebastian, Marina Winter, Sergio Damián Abate, Evelina Luisa Tarragona, Santiago Nava

“…On 12 October 2020, a specimen of <i>C. villosus</i> was found dead on the road in Río Negro province, Argentina. Molecular detection of <i>Rickettsia</i> and <i>Ehrlichia</i> agents was performed amplifying the <i>gltA</i> and 16S rRNA gene, respectively. …”
Get full text

Pterosaur Tracks from the Upper Cretaceous Anacleto Formation (Neuquén Basin), Northern Patagonia, Argentina: Insights into Campanian Pterosaur Diversity in Gondwana by Ignacio Díaz-Martínez, Arturo M. Heredia, Santiago N. González, Nerina Canale, Silvina de Valais, Carlos A. Cónsole-Gonella, Romina M. Montes, Martina Caratelli, Sofía Urzagasti-Torres, Geraldine Fischer, Agustina Lecuona, Pablo Paniceres, Leonardo Salgado, Paolo Citton

“…Here, we report four pterosaur manus tracks from fluvial red beds cropping out in the Área Natural Protegida Municipal Paso Córdoba (Río Negro Province, northern Patagonia, Argentina). Tracks are longer than wide, tridactyl with digit impressions of different lengths (I < II < III), anteriorly directed and laterally asymmetrical. …”
Get full text

Análisis Estratigráfico Secuencial de las Formaciones Huincul y Lisandro del Subgrupo Río Limay (Grupo Neuquén - Cretácico Tardío) en el Departamento El Cuy, Río Negro, Argentina... by M. L. Sánchez, J Rossi, S Morra, P Armas

“…<br>In the Cuy Department, Rio Negro Province (Fig. 1), there are outcrops of the Late Cretaceous continental deposits of the Subgroup Rio Limay (Fig. 2), in virtually continuous exposures that allow detail studies and exploration of the architecture of the sedimentary bodies. …”
Get full text