Results 101 to 110 of about 7,253 (231)
Revised three-dimensional geometry of the platiniferous Hekeia Gabbro, Longwood Range, Southland [PDF]
The Hekeia Gabbro in the Longwood Range of Southland is prospective for platinum group element mineralisation. Recently acquired geological and isotopic data, combined with reinterpreted aeromagnetic data, provide new constraints on the three dimensional
Fabio Caratori Tontini +2 more
core +1 more source
GEOCHRONOLOGY OF ALKALINE ROCKS FROM THE BURPALA MASSIF (NORTHERN PRIBAIKALYE): NEW U-Pb DATA
Geochronological 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
Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure
Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark +8 more
wiley +1 more source
Granite-gabbro mixing near Norton Pt. (8) [PDF]
Granite-gabbro mixing near Norton Pt.
Marvinney, Robert G
core
A series of ultrabasic-acid igneous rocks are distributed in the belt of Urad houqi-Damaoqi-Siziwangqi, in middle Inner Mongolia. The formation age and geochemistry of these rocks can provide basic geological information for the metallogenic regularities
ZHAO Ze-lin +7 more
doaj +1 more source
Geology of the central uplift of the Kamestastin Lake impact structure, Labrador, Canada
Abstract The ~28 km Kamestastin (Mistastin) Lake impact structure is a relatively well‐preserved and well‐exposed complex impact structure. The central uplift of this structure is accessible as two islands in the middle of Kamestastin Lake. We present an updated, detailed geological map and description of Horseshoe and Bullseye islands that provides ...
A. C. Singleton, G. R. Osinski
wiley +1 more source
Structural-temporal approach for dynamic strength characterization of gabbro-diabase [PDF]
This paper presents some of the results of dynamic compression, splitting and direct-tensile tests of gabbro-diabase using two split Hopkinson bar apparatus.
A. Evstifeev +7 more
core +1 more source
The article presents an analytical assessment of Ukraine’s decorative stone reserves by rock type, colour characteristics, and degree of geological exploration.
I.A. Piskun +4 more
doaj +1 more source
Anorthosite-gabbro-granophyte relationships, Mount Sheridan area, Oklahoma [PDF]
Field work, phase analysis by microprobe, petrography, and oxygen isotope analysis have been undertaken in an effort to establish the relationships among the anorthositic, gabbroic, and granophyric rocks of the Mount Sheridan area in southwestern ...
Thornton, Edward Clifford
core +1 more source

