Results 71 to 80 of about 1,016,504 (237)

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Sedimentology and geochemistry of carbonates from lacustrine sequences in the Madrid Basin, central Spain [PDF]

open access: yesChemical Geology, 1995
Lacustrine and alluvial carbonate facies have been investigated in Middle Miocene successions of the western side of the Madrid Basin in order to evaluate paleoenvironments in which carbonates formed. Carbonate facies are varied and include: ( 1) calcrete and dolocrete; (2) pond deposits; (3) lake margin dolostone; (4) mudflat carbonate; and (5) open ...
Calvo Sorando, José Pedro   +5 more
openaire   +3 more sources

A Reproducible SEM Surface Imaging Protocol for Monitoring Microstructural Changes During Gas–Rock Interactions

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Reliable characterization of mineralogical and textural changes in rock samples is essential for understanding fluid–rock interactions, particularly in experimental studies simulating subsurface conditions. This study presents a reproducible protocol for scanning electron microscopy (SEM) analysis of rock surfaces before and after exposure to ...
Berta Ordóñez‐Casado   +3 more
wiley   +1 more source

Isotopes in hydrology and hydrogeology [PDF]

open access: yes, 2019
The structure, status, and processes of the groundwater system, which can only be acquired through scientific research efforts, are critical aspects of water resource management. Isotope hydrology and hydrogeology is a genuinely interdisciplinary science.
Barbieri, Maurizio
core   +1 more source

Geomorphology of the Lozoya river drainage basin area (Community of Madrid, Spanish Central System) [PDF]

open access: yesJournal of Maps, 2014
The Lozoya river catchment is located in the NE part of the Spanish Central System intracratonic orogen (Community of Madrid, Spain). A detailed geomorphological map of this area was designed at 1:50,000 scale, in order to analyze surface processes and Late Cenozoic landscape evolution.
Karampaglidis, Theodoros   +2 more
openaire   +1 more source

Seasonal Predictions and Their Applications in the Mediterranean Region: Part II—Prediction‐Based Services

open access: yesInternational Journal of Climatology, EarlyView.
This review explores climate predictions as actionable decision‐making tools, focusing on the Mediterranean. It examines transforming forecasts into user‐defined information through bias adjustment, downscaling and impact models. Highlighting collaborative EU initiatives, it addresses challenges like limited forecasting skill and data accessibility ...
Silvio Gualdi   +12 more
wiley   +1 more source

Petroleum in the Spanish Iberian Peninsula [PDF]

open access: yes, 2010
The main events of the history of petroleum in Spain are the following: 1) The mining concession of petroleum named El Progreso is the first one in Spain and occurred only seven years after Edwin Drake (1819-1880) drilled the first oil well in ...
Mazadiego Martínez, Luis Felipe   +2 more
core   +1 more source

Lacustrine chalky carbonates: origin, physical properties and diagenesis (Palaeogene of the Madrid Basin, Spain) [PDF]

open access: yesSedimentary Geology, 2004
The Palaeogene lacustrine chalky carbonates of the Madrid Basin are a peculiar type of very soft and friable carbonate facies with high porosity despite being covered by more than 800 m of sediment. Similar physical properties to those described in marine chalk reservoirs emphasize the interest in analysing and characterizing these carbonate ...
Arribas Mocoroa, María Eugenia   +2 more
openaire   +2 more sources

Composition of clastic sediments in the Somosaguas area (middle Miocene, Madrid Basin): insights into provenance and palaeoclimate

open access: yes, 2015
The western area of the Cenozoic Madrid Basin has not been adequately studied. This, combined with the high homogeneity of detrital facies makes the stratigraphic correlation with other areas of the basin rather difficult.
E. Fesharaki   +2 more
semanticscholar   +1 more source

On the botanical history and nomenclature of the New World genus Piscidia (Fabaceae)

open access: yesNordic Journal of Botany, EarlyView.
Piscidia L. (Fabaceae) is a New World genus with nine recognized taxa (seven species and two varieties). The previous nomenclatural revisions, made in 1910 and in 1969, are revisited here. The names Derris grandifolia Heyde & Lux ex Donn.Sm. and P. cubensis Urb. required step II lectotypifications, with an epitype for the latter name.
Camila Sánchez‐ Vega   +4 more
wiley   +1 more source

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