Results 41 to 50 of about 6,255 (170)
Appendix E. Figures of herb community ordination for diorite and serpentine soils.
, 2016 Figures of herb community ordination for diorite and serpentine ...
Ellen I. Damschen (514001) +2 more
core +1 more source
Geological Journal, EarlyView.The rhyolitic ignimbrite and K‐feldspar granite porphyry from the Wangmushan mining district, northern Fujian yield ages of 173.8 ± 0.8 and 102.6 ± 0.4 Ma, respectively. Geochemical data, zircon trace elements, whole‐rock Sr–Nd–Pb isotope data, and zircon Hf isotopic compositions indicate that the rhyolitic ignimbrite originated from partial remelting ...
Wei Shaogang +7 more
wiley +1 more source
The composite net-veined diorite intrusives of the Julianehåb district, South Greenland [PDF]
, 1965 Net-veined diorite intrusive are described from a plutonic environment of Precambrian granites in the Julianehåb district of S. Greenland. They are composite, minor intrusions consisting of a central diorite flanked by margins of aplitic granodiorite and
Windley, B. F.
core
Development of Open Transport of Aqueous Fluid from Pegmatite Revealed by Trace Elements in Garnet
Geofluids, 2022 We investigated the fluid flow and elemental transport from a granitic body to the middle crust by determining the trace element compositions of garnet in pegmatites related to a quartz diorite intrusion and metamorphic rocks on Kinkasan Island ...
Astin Nurdiana +3 more
doaj +1 more source
X-Ray Spectrometry, EarlyView.ABSTRACT Appropriate sample‐to‐flux ratios of fused borate glass bead specimens were investigated for igneous rock analyses. Severe interference of X‐ray absorption and enhancement engenders erroneous findings from X‐ray fluorescence spectrometric analyses, but light element dilution effects on glass bead specimens decrease this interference.
Kenichi Nakayama
wiley +1 more source
Archaeometry, EarlyView.ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello +5 more
wiley +1 more source
Dov Levitte and Yosef Garfinkel, A Diorite New Kingdom Scarab from Tel Lachish
, 2020 This paper presents a rare scarab made of diorite and set in a golden bezel that was excavated in a topsoil locus at Tel Lachish. Although it lacks a clear stratigraphic context, the scarab still presents important data on the Late Bronze Age at ...
Brandl, Baruch, Baruch Brandl
core +1 more source
Gold mineralized diorite beneath the Linglong ore field, North China craton: New insights into the origin of decratonization-related gold deposits [PDF]
, 2023 Gold deposits in Precambrian cratons were mostly generated during the formation and stabilization of the cratons, but the North China craton is unusual in that its gold deposits were mainly formed ∼1.7 b.y. after its stabilization.
Tomkins, Andrew G. +10 more
core +1 more source
GEOCHRONOLOGY OF ALKALINE ROCKS FROM THE BURPALA MASSIF (NORTHERN PRIBAIKALYE): NEW U-Pb DATA
Геодинамика и тектонофизикаGeochronological studies have been made on the main types of rocks from the Burpala alkaline massif and two gabbro and gabbro-diorite dikes located nearby.
I. А. Izbrodin +8 more
doaj +1 more source
Journal of Economic Geology, 2019 Introduction The study area is located in the northeast of Iran (the Khorasan Razavi province) and 28 km northwest of Bardaskan city and in position of 57˚ 46΄ to 57˚ 52΄ latitude and 35˚ 21΄ to 35˚ 24΄ longitude. The study area is a part of Taknar zone.
Reza Monazzami Bagherzadeh +7 more
doaj +1 more source