Climate and geology overwrite land use effects on soil organic nitrogen cycling on a continental scale [PDF]
Soil fertility and plant productivity are globally constrained by N availability. Proteins are the largest N reservoir in soils, and the cleavage of proteins into small peptides and amino acids has been shown to be the rate-limiting step in the ...
L. Noll+7 more
doaj +2 more sources
Structural framework and timing of the Pahtohavare Cu ± Au deposits, Kiruna mining district, Sweden [PDF]
As part of the larger mineral systems approach to Cu-bearing mineralization in northern Norrbotten, this study utilizes structural geology to set the classic Pahtohavare Cu ± Au deposits into an up-to-date tectonic framework.
L. Logan+4 more
doaj +1 more source
Mineral chemistry and geothermometry of chlorite in Dalayon Area (East of Dorud- Sanandaj-Sirjan Zone) [PDF]
The main aim of this paper is to identify the formation environment and the physicochemical conditions of chlorite minerals in Dalayon area by their mineralogical and geochemical features (Ciesielczuk, 2002).
SeyedVahid Shahrokhi
doaj +1 more source
Crystal characteristics of fibrous calcite veins based on Electron Back Scattered Diffraction (EBSD)
Calcite veins are widely developed in organic-rich shale, and their petrological characteristics and genetic mechanism are the focus of research. The Electron Back Scatter Diffraction (EBSD) can characterize the micro-structure and orientation of mineral
Lanquan ZHAO+8 more
doaj +1 more source
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst+8 more
wiley +3 more sources
SHORT NOTES ON THE SHIMSHAL VALLEY GEOLOGY (WESTERN KARAKORUM-PAKISTAN)
A geological reconnaissance carried out during Summer 1982 along the lower and middle Shimshal Valley allows to identify some lithostratigraphic units madc up of slates (shaly and sandy deep— sea turbidites), shelf limestones and dolomites.
R. Casnedi, A. Nicora
semanticscholar +1 more source
Transitional geometries between gently plunging and steeply plunging folds: an example from the Lower Palaeozoic Brabant Massif, Anglo-Brabant deformation belt, Belgium [PDF]
A
Debacker, Timothy+2 more
core +2 more sources
Influence of slump folds on tectonic folds: an example from the Lower Ordovician of the Anglo-Brabant Deformation Belt (Belgium) [PDF]
Although it is generally accepted that buckle folds will not develop in a perfectly planar layer without the presence of some irregularity or perturbation at which the folds initiate, there are very few cases in which individual natural folds can be ...
Beckers, R, Debacker, Timothy
core +2 more sources
Gradational development of slaty cleavage to schistosity -an example from the Iberian Pyrite Belt, Spain- [PDF]
The Iberian Pyrite Belt is an Upper Paleozoic succession which has been divided into the Phyllite-Quartzite Group, the Volcanic-Sliceous Complex and the Culm Group in ascending order from base to the top. The contacts among them are conformable.
Suzuki, shigeyuki
core +1 more source
Correlating magnetic fabrics with finite strain : comparing results from mudrocks in the Variscan and Appalachian Orogens [PDF]
New magnetic anisotropy data from Variscan mudstones collected in the Cantabrian Arc, N Spain constrain the corresponding strain (shortening). The results are based on our previous study of mudrocks from the Valley and Ridge Province (Appalachians) where
Parés, J. M., Van Der Pluijm, B. A.
core +3 more sources