Results 31 to 40 of about 50,590 (213)

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

open access: yesArchaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather   +11 more
wiley   +1 more source

Chapter 52 The Playa Hermosa Formation, Playa Verde Basin, Uruguay

open access: yes, 2011
The Playa Hermosa Formation (Fm.) (Playa Verde Basin) is a volcano-sedimentary unit that crops out in the extreme south of the Dom Feliciano Belt in Uruguay.
Pazos, Pablo Jose   +7 more
core   +1 more source

Studying the Stability of the Proximity and Interaction Effect between Geomorphic Systems of Alluvial and Aeolian Landforms in Petergan Playa

open access: yesجغرافیا و پایداری محیط, 2020
The natural contrast between alluvial and aeolian geomorphic systems on the western margin of the Petergan Playa creates a balanced and stable environmental condition, while human intervention in the one of these systems leads to environmental ...
Maryam Rabiei
doaj   +1 more source

Single‐grain K‐feldspar luminescence dating on primary and re‐deposited aeolian sediments in Mongolia

open access: yesBoreas, EarlyView.
Owing to its location in the semi‐arid region of northern Central Asia, Mongolia is highly sensitive to climate change and therefore provides an excellent setting for palaeoenvironmental research. Proxy data from different sediment types are crucial for interpreting past climate changes and landscape evolution, while burial ages provide chronological ...
Junjie Zhang   +4 more
wiley   +1 more source

Review of the 2020 Statewide Suitability Survey of ASR and AR for Texas Aquifers

open access: yesGroundwater, EarlyView.
Since publication in 2020, the Statewide Survey of Aquifer Suitability for Aquifer Storage and Recovery Projects or Aquifer Recharge Projects interactive map experience and method have inspired researchers, water providers, and policymakers to explore the potential of aquifer storage and recovery and aquifer recharge in Texas.
Andrea D. Croskrey   +2 more
wiley   +1 more source

Caracterización morfosedimentaria del depósito tipo playa ubicado en San Francisquito, estado Miranda, Venezuela

open access: yesCuadernos de Geografía: Revista Colombiana de Geografía, 2020
El reconocimiento de la dinámica morfosedimentaria de los espacios costeros constituye un elemento de interés, a fin de comprender la acción de los agentes y procesos involucrados en la constitución del paisaje.
Franklin Antonio Nuñez   +3 more
doaj   +1 more source

Estimating past fluid pH and evaporative conditions in Gale crater using terrestrial analog samples from Death Valley, CA

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Boron and lithium have been observed in Ca‐sulfate veins of Gale crater. These elements are highly water mobile and can inform us regarding the aqueous processes that may have taken place in Gale crater. However, the analysis of B in Gale crater is limited to low‐Fe rocks and minerals due to spectral interference of Fe with B in ChemCam data ...
D. Das   +11 more
wiley   +1 more source

New Linyphiidae spiders associated with playas in the Southern High Plains (Llano Estacado) of Texas (Arachnida: Araneae) [PDF]

open access: yes, 2007
Open-access article without DOI from Zootaxa Source: http://www.mapress.com/zootaxa/2007f/zt01529p060.pdf Uploaded by ...
Cokendolpher, James C.   +3 more
core   +1 more source

Silverside gold mine? Restored tidal habitats host abundant invasive fishes in a novel California marsh (U.S.A.)

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Novel ecosystems, where environmental conditions have been fundamentally altered from a historic norm, require nontraditional approaches to restoration. Suisun Marsh, located within California's San Francisco Estuary (SFE), is a novel, brackish water wetland complex, where managers have begun restoring tidal connectivity to ...
Elsie Platzer   +3 more
wiley   +1 more source

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

open access: yesSedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot   +8 more
wiley   +1 more source

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