- tuffs, with
minor shales and siltstones. Gold
mineralization occurred with
dioritic and
gabbroic intrusions, and
basaltic to
andesitic lavas,
including the...
-
Breccia (pseudotachylite),
footwall breccia,
radial and
concentric quartz dioritic breccia ****s (polymict
impact melt breccias), and the
discontinuous sub...
-
plutonic rocks are
classified by
where they fall in the QAPF diagram.
Dioritic and
gabbroic rocks are
further distinguished by
whether the plagioclase...
-
Anhydrite has been
found in some
igneous rocks, for
example in the
intrusive dioritic pluton of El Teniente,
Chile and in
trachyandesite pumice erupted by El...
- Ontario, to
irregular veins and
disseminations ****ociated with
granitic to
dioritic intrusives as in the
porphyry copper deposits of
Broken Hill, the American...
-
submarine fan
delta environment during the Oxfordian-Tithonian. Some 20
dioritic and
granodioritic Tertiary plutons pierce the formation. Most prevalent...
-
lavas and
basaltic agglomerates. It is
intruded by gabbroic, diabasic, and
dioritic rocks. The Cretaceous–Tertiary
basin is made up of five
formations of mainly...
-
metamorphosed basalts, a
gabbroic sill, and
volcanic roots in the form of a
dioritic and
gabbroic intrusion. The
experience planted the seed of Johnston's p****ion...
-
classification of the rock type. Low-silica
igneous rocks are
further divided into
dioritic rocks having sodium-rich
plagioclase (An<50) and
gabbroic rocks having...
-
volcanic and
plutonic rocks of the
Punta del
Cobre Formation and the "
Dioritic Complex," respectively. The
controversial nature of the
Dominga mine project...
