Results 81 to 90 of about 47,841 (257)
Campos de altitude from Brazil: Neglected biodiversity treasures under threat
Conservation Science and Practice, EarlyView.
Igor Musauer Kessous
wiley +1 more source
ABSTRACT Deep crustal fragments and structural lineaments identified through satellite gravity data provide evidence for the extension of the reworked ancient basement of the Central African Block into the northern São Francisco Craton and southern Borborema Province.
Douglas Teixeira Martins +3 more
wiley +1 more source
We report information on the protolith, the Triassic retrograde metamorphism, and anatexis recorded in zircons extracted from granitic gneiss and biotite schist in the Sulu orogenic zone, central China.
Yongkang Ye +4 more
doaj +1 more source
U-Pn geochronology of deformed metagranites in central Sutherland, Scotland: evidence for widespread late Silurian metamorphism and ductile deformation of the Moine Supergroup during the Caledonian orogeny [PDF]
Within the Caledonides of central Sutherland, Scotland, the Neoproterozoic metasedimentary rocks of the Moine Supergroup record NW-directed D2 ductile thrusting and nappe assembly, accompanied by widespread tight-to-isoclinal folding and amphibolite ...
Friend, C.R.L. +5 more
core +1 more source
Abstract Little is known about the sustainability of an intercropping system comprising finger millet (Eleusine coracana) and pigeon pea (Cajanus cajan). We therefore sowed both cover crops and the above crops over 3 years in a seed mix of 8:2 by weight to assess their effects on soil properties, yield potential, and energy‐use efficiency.
Mudalagiriyappa +10 more
wiley +1 more source
Geology of a Part of the Panamint Range, California [PDF]
The Panamint Range is a tilted fault-block, uplifted probably in Tertiary time and rejuvenated by very complex recent faulting on the west. This great block is approximately 100 miles long, but the reconnaissance geologic map covers only a tract in the ...
Murphy, F. M.
core
Centennial- to millennial-scale hard rock erosion rates deduced from luminescence-depth profiles [PDF]
The measurement of erosion and weathering rates in different geomorphic settings and over diverse temporal and spatial scales is fundamental to the quantification of rates and patterns of earth surface processes. A knowledge of the rates of these surface
Egholm, David +6 more
core +2 more sources
X‐ray CT and microscopic analysis of glaciogenic mud provide insight into the deposits of sediment‐laden density flows and reveal that strata comprise two microtextural motifs. The deposits of bottom‐hugging hyperpycnal flows and slope‐failure‐related turbidity currents are characterised by laterally continuous, sharply bounded silt‐rich and clay‐rich ...
Omar N. Al‐Mufti +3 more
wiley +1 more source
A reference book on rocks and minerals of New England for gifted students in the intermediate grades. [PDF]
Thesis (Ed.M.)--Boston ...
Carson, Janine A., Edwards, Harriet L.
core +1 more source
Biotite effect on the anisotropic properties of gneiss in Eastern Himalayas, China
Intact rocks with layered microstructures, such as gneiss, exhibit strong anisotropy. Although anisotropy in the macroscopic strength of gneiss has been widely reported, the role of microstructures in tensile mechanics remains largely unclear.
Shijie Liu +4 more
doaj +1 more source

