Results 111 to 120 of about 620,528 (279)

Structural lineaments in the southern Sierra Nevada, California [PDF]

open access: yes
The author has identified the following significant results. Several lineaments observed in ERTS-1 MSS imagery over the southern Sierra Nevada of California have been studied in the field in an attempt to explain their geologic origins and significance ...
Childs, J. F., Liggett, M. A.
core   +1 more source

Phenology in winter‐deciduous relict Mediterranean forests as a tool to understand their adaptation to climatic seasonal cycles

open access: yesNordic Journal of Botany, EarlyView.
Winter deciduous forests signify a relict ecosystem that survives restricted to microclimatic zones of high mountains in the western Mediterranean Basin and they are well represented in the southern Iberian Peninsula (Sierra Nevada, Spain). Given the scarce knowledge of their phenological behaviour, the aim of this work was to obtain the annual ...
Manuel Pavón‐Núñez   +2 more
wiley   +1 more source

GeoTechnical Investigations for the Dalton Highway Innovation Project As A Case Study of the Ice-Rich Syngenetic Permafrost [PDF]

open access: yes, 2010
INE/AUTC 11 ...
Dillon, Matthew   +4 more
core  

Volcanic soils alleviate the allelopathic capacity of Empetrum nigrum in degraded tundra ecosystems

open access: yesOikos, EarlyView.
Land degradation due to unsustainable land use is of major concern worldwide and recovery is often slow. A potential mechanism behind slow recovery of degraded ecosystems is the retarding impacts of allelopathic plant species on the establishment of species that might facilitate the recovery process.
Ingvild Ryde   +6 more
wiley   +1 more source

Mechanical and hydrophobic properties determination of epoxy/ignimbrite/pine waste composites

open access: yesPolymer Composites, EarlyView.
Schematic diagram of production epoxy/ignimbrite/pine waste composites. Abstract In this study, for the first time, composites have been prepared using ignimbrite and pine waste in epoxy matrix for the restoration of civil architecture examples in Anatolia (Turkiye).
Ahmet Cihat Ari
wiley   +1 more source

Cryptic Ice Wedge Networks in Holocene Peat, Yukon‐Kuskokwim Delta, Alaska

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The Yukon‐Kuskokwim Delta (YKD), covering ~75,000 km2 of Alaska's discontinuous permafrost zone, has a historic (1902–2023) mean annual air temperature of ~−1°C and was previously thought to lack ice wedge networks. However, our recent investigations near Bethel, Alaska, revealed numerous near‐surface ice wedges.
Benjamin M. Jones   +11 more
wiley   +1 more source

The Archean crust in the Wawa-Chapleau-Timmins region. A field guidebook prepared for the 1983 Archean Geochemistry-Early Crustal Genesis Field Conference [PDF]

open access: yes
This guidebook describes the characteristics and interrelationships of Archean greenstone-granite and high-grade gneiss terrains of the Superior Province.
Card, K. D.   +4 more
core   +1 more source

Arsenic in the Water, Soil Bedrock, and Plants of the Ester Dome Area of Alaska [PDF]

open access: yes, 1982
Concentrations of arsenic as large as 10 ppm (200 times the safe limit for drinking water) occur in the groundwater of a mineralized residential area near Fairbanks. Bedrock of the area contains 750 ppm As, primarily as arsenopyrite and scorodite. The
Dinkel, Donald   +3 more
core  

Towards the sustainability of African sandalwood: Understanding the distribution and environmental requirements

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
African sandalwood (Osyris lanceolata) leaves, roots, barks, fruits, and woods are used for multiple purposes throughout Asia, Africa, and Europe. The species is threatened in several eastern African countries. To improve the species' management and conservation, a habitat suitability study was undertaken in its at‐risk region in eastern Africa and ...
Jane Gachambi Mwangi   +4 more
wiley   +1 more source

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