The North structure and the Bloody Creek structure are morphometrically, geophysically, and petrographically
Second, they indicate the existence of macroscopically similar but petrographically
different white inclusions in a limited number of fabrics.
Six soil profiles from four petrographically
different areas in south-west Germany, a region characterised by a humid-temperate climate, were selected for the first runs of the new sequential extraction procedure, both to evaluate the method and to quantify the different Si-pools in the soil profiles.
and geochemically the dolostones of the Plavinas RS differ significantly from Early-Middle Devonian early diagenetic dolostones (Kleesment & Shogenova 2005; Kleesment 2007; Shogenova et al.
Black shale in Egypt was also studied petrographically
, mineralogically and geochemically by many workers [11, 14-16].
Rare black and crenulated kernels from 1mm to 3mm maximum dimension, incorporated within several crenulations of the schistose micas are petrographically
identified as being "carbonaceous", being composed of compact ultrafine graphite, individual flake size
86]Sr); they are therefore unlike adjacent West Valley lavas, both petrographically
While it has been demonstrated petrographically
that transformation of some of the primary labile minerals and rock-fragments to smectite is contemporary (i.
The samples were also studied petrographically
, and identified as sovites (calcitic carbonatites) and beforsites (dolomitic carbonatites) containing pyrochlore and columbite.
is rated petrographically
as high diamond interest.
The anorogenic Riga pluton that forms the southern part of the Riga-Aland rapakivi subprovince (Puura & Floden 1999) contains both mafic and silicic rocks, which are petrographically
and geochemically analogous to the typical members of the Fennoscandian rapakivi-anorthositic suite.
It is to be recalled that it was not possible to distinguish separate flows for Unit F, either petrographically
or in the field.