Results 281 to 290 of about 139,080 (365)

Geology of Canadian nickel deposits

, 1972
openaire   +1 more source

Geology of titanium-mineral deposits

Ore Geology Reviews, 1993
openaire   +1 more source

Portulaca eggliana (Portulacaceae), a new species from the Brazilian Amazonian savannas

Nordic Journal of Botany, EarlyView.
A new species of Portulacaceae from the Amazonian savannas of northern Brazil is herein described and illustrated. Portulaca eggliana is morphologically related to P. umbraticola, but differs in the number of involucral leaves, sepal morphology, bracteole shape, and seed surface.
José Roberto Ferraz, Diego Ferreira Da Silva, Gustavo Hassemer, Leonardo Paz Deble, João Marcelo Alvarenga Braga   +4 more
wiley   +1 more source

Appraisal of groundwater conditions through hydrogeophysical and hydrogeological approach in Cholistan area, district Bahawalpur, Punjab, Pakistan. [PDF]

PLoS One
Muhammad S, Khalid P, Ehsan MI, Javed U, Ahmad QA, Raza I, Golsanami N, Khurram S.   +7 more
europepmc   +1 more source

Osteometry of Duck Species in Northwestern Europe—A Reassessment of Woelfle's (1967) Dataset

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT This study revisits and expands upon Elisabeth Woelfle's (1967) foundational analysis of bone morphology and osteometry, which has long been a key reference for zooarcheological identification of duck species in northwestern Europe. By examining Woelfle's unpublished measuring protocols and incorporating 523 newly measured specimens, we ...
Per G. P. Ericson, Nadja Pöllath
wiley   +1 more source

Linking Atmospheric and Soil Contamination: A Comparative Study of PAHs and Metals in PM₁₀ and Surface Soil near Urban Monitoring Stations. [PDF]

Toxics
Račić N, Ružičić S, Pehnec G, Jakovljević I, Sever Štrukil Z, Rinkovec J, Žužul S, Smoljo I, Zgorelec Ž, Lovrić M.   +9 more
europepmc   +1 more source

Lions as Bone Accumulators? Exploring Multi‐Predator Contributions to the Olduvai Carnivore Site (OCS) (Tanzania) Through AI and Metric Analyses

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Lions (Panthera leo) are apex predators with a well‐documented influence on ecological dynamics, yet their potential role as bone‐accumulating agents remains poorly understood and often debated. Previous taphonomic studies have largely attributed bone accumulations in African savannah ecosystems to other carnivores, such as spotted hyenas ...
Blanca Jiménez‐García, Enrique Baquedano, Manuel Domínguez‐Rodrigo   +2 more
wiley   +1 more source

Predicting the preservation of buried ore deposits using deep-time landscape evolution modeling. [PDF]

Sci Adv
Tu A, Zahirovic S, Polanco S, Boone SC, Boyd M, Mallard C, Restrepo P, Ibrahim Y, Mahoney L, Salles T, McInnes B, Farahbakhsh E, Kohlmann F, Seton M, Müller DR.   +14 more
europepmc   +1 more source

Radium behaviour in geologic media : application to nuclear waste deposition

, 2020
Otto Tikkanen
openalex   +1 more source

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

Oikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade, Taryn Sepúlveda, Cristóbal Rivera, Cristian Aldea, Tomás I. Marina   +4 more
wiley   +1 more source