Results 31 to 40 of about 105,269 (259)

Comparison of γ-ray spectrometry and ICP-MS methods for measuring radioactive heat-producing elements of rocks: a case study on borehole samples from the Sichuan Basin, China [PDF]

open access: yes, 2017
We compared the consistency of γ-ray spectrometry and inductively coupled plasma mass spectrometry by analyzing measurement results of the radioactive heat-producing elements U, Th, and K from borehole samples.
Hu, Shengbiao   +3 more
core   +1 more source

Gleaning the Rocky Shore? 2500 Years of Coastal Resource Use at Red Bluff 1, GunaiKurnai Country, SE Australia

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT Shell middens in Gippsland along the eastern half of Victoria's coastline have usually been characterised as small, short‐duration camp sites with relatively low shell densities and low taxonomic diversity. Here we present new excavation results from a dense, high‐diversity site at Red Bluff near the eastern end of GunaiKurnai Country, a ...
Patrick Faulkner   +17 more
wiley   +1 more source

Fracture characteristics of reservoirs with different lithologies in marine-continental transitional facies and its influence on fracturing

open access: yesYouqi dizhi yu caishoulu
Rock fracture mechanics properties are the intrinsic geo-mechanical basis for determining the effectiveness of reservoir fracturing stimulation. It is of practical significance to clarify the fracture mechanics properties of reservoirs with different ...
ZHANG Wen   +5 more
doaj   +1 more source

Fe-Ni Sulphides within a CM1 clast in Tagish Lake [PDF]

open access: yes, 2005
The composition, abundance and mineral associations of Fe-Ni sulphides within a CM1 clast in Tagish Lake are described, and compared with Fe-Ni sulphides in the carbonate-rich and carbonate-poor lithology of Tagish Lake, as well as Fe-Ni sulphides from ...
Bullock, E. S.   +3 more
core  

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini   +5 more
wiley   +1 more source

Infiltration Well Design for Environmental Conservation: Assessing Watershed and Groundwater Depth in Denpasar City

open access: yesJurnal Presipitasi
Urbanization and climate change are expected to exacerbate and introduce uncertainty in future flood characteristics. The city of Denpasar often experiences flooding due to rapid population growth and changes in land use.
Tri Hayatining Pamungkas   +4 more
doaj   +1 more source

Soil Physicochemical Characteristics and Bacterial Diversity of Pinus Massoniana Plantations in Different Strata Backgrounds in Red Soil Erosion Areas

open access: yesShuitu baochi tongbao, 2022
[Objective] The intrinsic relationship between soil physical and chemical properties and bacterial abundance was determined in order to provide a reference for precise control of soil erosion in a Pinus massoniana forest in red soil erosion areas ...
Huang Siqi   +6 more
doaj   +1 more source

THE LITHOSTRATIGRAPHY OF THE NEAR-SURFACE IN PART OF SEDIMENTARY KOLMANI FIELD IN NORTHERN BENUE TROUGH, NIGERIA, USING SOIL CORE AND SEISMIC REFRACTION DATA [PDF]

open access: yesEarth Sciences Pakistan, 2020
Soil samples from 31 shallow boreholes were acquired at depths 0m, 1m, 2m, 3m, 4m, 5m, 7m, 10m, 15m, 20m, 25m, 30m, 35m, 40m, 45m, 50m, 55m, and 60m in Pingida (Kolmani Field) in Ako LGA, Gombe State, Nigeria. Using the same boreholes, seismic refraction
Glory G. Akpan   +2 more
doaj   +1 more source

Fractality of eroded coastlines of correlated landscapes

open access: yes, 2011
Using numerical simulations of a simple sea-coast mechanical erosion model, we investigate the effect of spatial long-range correlations in the lithology of coastal landscapes on the fractal behavior of the corresponding coastlines.
Andrade Jr, J. S.   +4 more
core   +1 more source

The spread of non‐native species

open access: yesBiological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

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