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#1Prospect dolerite intrusion - Wikipedia
The dolerite intrusion is a circular teschenite encroachment that has intruded the Triassic Wianamatta shale, with the intrusion's external, elliptic shaped ...
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#2Some thoughts on dolerite intrusions with particular reference ...
Some thoughts on dolerite intrusions with particular reference to marginal features. D.E. Leaman. The fine-grained rocks at the margins of Jurassic dolerite.
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#3Shallow dolerite intrusion and phreatic eruption in the Allan ...
Shallow intrusion of dolerite sills into porous and permeable Permian-Triassic strata in the Allan Hills region resulted in steam pressures which exceeded ...
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#4Dolerite intrusion, Hobart district, Tasmania
The dolerite intrudes flat lying shallow marine Permian and continental Triassic rocks. A major problem was the resolution of more recent faulting superimposed ...
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#5Fracture patterns around a thin dolerite intrusion exposed east ...
Download scientific diagram | Fracture patterns around a thin dolerite intrusion exposed east of Hatten, approximately 18 km from the Dh4 borehole.
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#6Dolerite - Scran
Dolerite is the medium grained, intrusive, equivalent of a basalt (link to basalts). It usually occurs as dykes, plugs or sills. Being intruded into country ...
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#7Unpacking the secrets of South Africa's dolerite sills - The ...
Dolerite sills so distinctive of the Karoo scenery in South Africa. ... Are they evidence that the intrusion of the dolerites liberated ...
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#8Investigation of three-dimensional magnetization of a dolerite ...
Investigation of three-dimensional magnetization of a dolerite intrusion using airborne full tensor magnetic gradiometry (FTMG) data. M Queitsch ...
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#9The Structure of the Granophyric Quartz-Dolerite Intrusion of ...
The Structure of the Granophyric Quartz-Dolerite Intrusion of Centre 2, Ardnamurchan and the Problem of Net-Veining - Volume 91 Issue 4.
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#10Dolerite - an overview | ScienceDirect Topics
Intrusive rocks comprise dolerite dykes and mica lamprophyre as dykes and sills. Both occur extensively in the Raniganj Basin mainly affecting the Damuda ...
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#11Effect of dolerite intrusions on coal quality in the ... - CiteSeerX
Three intrusions were selected for detailed study. The three dolerite bodies, namely the DO4, DO8 and DO10 dolerites, occur as sills intruded close to the main ...
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#12Bartestree Dolerite Intrusion - Earth Heritage Trust
Bartestree Dolerite Intrusion Age: Uncertain (Permian-Carboniferous) There is a dyke-like intrusion at Lowe's Hill Quarry near Bartestree. Radiometric ...
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#13The structure of the granophyric quartz ... - GeoScienceWorld
"The quartz-dolerite intrusion of Sgurr nam Meann, Ardnamurchan [Scotland], is shown to be a ring-dyke which has sill apophyses extending from its outer ...
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#14Composite Dolerite-Granophyre Dikes and Associated ... - jstor
INTRUSIONS OF CARBONIFEROUS AGE IN EASTERN CONNEMARA, IRELAND ... nition of dolerite-granophyre/microgranite ... intrusion forming the na hUillinnf dike.
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#15Effect of dolerite intrusions on coal ... - University of Pretoria
Three intrusions were selected for detailed study. The three dolerite bodies, namely the DO4, DO8 and DO10 dolerites, occur as sills intruded close to the main ...
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#16Petrology and geochemistry of Proterozoic dolerites from the ...
The Precambrian Mount Isa Inlier in northwest Queensland is extensively cut by numerous dolerite intrusions. At least two distinct episodes ...
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#17The relationship between geological structures and dolerite ...
The objective of the study is to investigate the intrusion mechanism of the dolerites and the metamorphic effect the dolerite intrusions had on the coal in ...
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#18File:Dolerite intrusion - geograph.org.uk - 1373107.jpg
Here a prominent rib in this ice-hewn valley side comprises a dolerite intrusion which is more massive and less shattered than the surrounding outcrops of ...
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#19Geometries of doleritic intrusions in central Spitsbergen ...
Igneous intrusions emplaced during the Early Cretaceous are well exposed in central ... dolerite intrusion in a stratigraphic borehole drilled at.
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#203D modeling of a dolerite intrusion from the photogrammetric ...
3D modeling of a dolerite intrusion from the photogrammetric and geophysical data integration. João Duarte (1,2,3), Ana Machadinho (3), Fernando Figueiredo ...
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#21the influences of dolerite sill and ring - Water Research ...
tectonics of the Western Karoo dolerite intrusions. These dolerite ring-complexes have been to a large extent been overlooked as potential.
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#22diabase | rock - Encyclopedia Britannica
diabase, also called Dolerite, fine- to medium-grained, dark gray to black intrusive igneous rock. It is extremely hard and tough and is commonly quarried ...
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#23Form, mechanism, and control of dolerite intrusion near ...
Proposed mechanisms for sill emplacement may be tested by forms of intrusion displayed by Tasmanian dolerites. These intrusions suggest upward, ...
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#24Morpho-tectonics and mechanism of emplacement of the ...
The dolerite intrusions are so interconnected and anas- tomosed that it is nearly impossible to single out any particu- lar intrusive or tectonic event. For ...
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#25The Structure and Form of the Granophyric Quartz-Dolerite ...
AbeBooks.com: The Structure and Form of the Granophyric Quartz-Dolerite Intrusion, Centre II, Ardnamurchan, Argyllshire. Transactions of The Royal Society ...
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#26A large scale investigation into changes in coal quality caused ...
The coalfields of South Africa contain numerous dolerite intrusions, ... the dolerite intrusions, either from the country rock or the intrusion itself may ...
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#27Dolerite from Cnoc Rhaonastil Intrusion, Isle of Islay, Argyll ...
Locality type: Intrusion. Classification. Type: Dolerite. Confirmation. Validity: Believed Valid. References. References: Hole, M. J., & Morrison, ...
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#28GRANITE…, SYENITE…, DOLERITE… INTRUSIONS (1) |
Dolerite (or diabase or microgabbro) is a mafic subvolcanic rock. It is an intrusive equivalent to extrusive basalt or plutonic gabbro. It ...
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#29Dolerite intrusion morphology at Majuba Colliery, northeast ...
Dolerite intrusion morphology at Majuba Colliery, northeast Karoo Basin, Republic of South Africa. International Journal of Coal Geology, 1999.
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#30Dolerite Intrusions - Groundwater Dictionary
The Karoo dolerite sills and ring-complexes have the same geographical distribution as the dolerite dykes and they are by far the most common type of intrusion ...
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#31Mechanisms of sill and dyke intrusion. - ResearchSpace@UKZN
The intrusion of fmegrained dolerite into older sills is demonstrated by abrupt variations in the whole-rock and mineral geochemistry profiles across the sills.
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#32Dolerite Intrusion © Anne Burgess cc-by-sa/2.0 - Geograph
Dolerite Intrusion. The rocks making up the headland at Carleton are ultramafic rocks brought up from the mantle of the Earth as part of the ...
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#33Determination of the Age of a Basic Igneous Intrusion ... - Nature
The presence of chilled margins to these dolerite intrusions also suggested the possibility of carrying out potassium–argon dating on a whole rock sample ...
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#34The petrology of a metamorphosed netveined acid-basic ... - DOI
A 1325-1015 Ma old minor netveined acid-basic intrusion within the Sveconorwegian ... The structure of the granophyre quartz-dolerite intrusion of center 2, ...
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#35Interaction magma-sédiment et impact environnemental d'une ...
Portrush Sill, Co.Antrim, Northern Ireland, is a dolerite intrusion related to the North-Atlantic Province. It was intruded in Jurassic mudstones about 55 My ...
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#36minerals - MDPI
Dolerite intrusion has been found in many sandstone- type uranium deposits in the study area [23,24], with distinct metallogenic characteristics.
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#37The dolerite plug at Slemish, Co. Antrim, Ireland - Wiley Online ...
The plug is a multiple intrusion of dolerite filling a vertical conduit of oval cross-section, about 2600 ft long and 900 ft wide; the three intrusions ...
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#38Incremental emplacement of the sheeted Glas Bheinn ...
Bheinn Porphyritic Dolerite intrusion in order to elucidate its relative magma source position and age relationships compared to other intrusions within the ...
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#39Hydrothermally Dissolved Dolerite Reservoir in the Akita ...
The. Onnagawa Formation is mainly composed of Neogene siliceous rock, and is the major source rock of the area. Dolerite sheets intrude into the ...
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#40The geometry of Karoo dolerite dykes and saucers in the ...
mining and drilling data set on Karoo dolerite intrusions in the Highveld Coalfield to ... intrusion levels of the main dolerite sills.
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#41Igneous intrusions - The Australian Museum
An intrusion is a body of igneous (created under intense heat) rock that has ... The dolerite sills of the Karoo South Africa, the Transantarctic mountains ...
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#42Pyrolysis of Tertiary oil shale by a dolerite intrusion, Stuart ...
The dolerite pyrolysed the intruded sediments with the observed aureole up to 68 m thick. ... holes (Figure 1) intersected an alkali dolerite intrusion.
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#44Igneous Rocks of the l(albar District, South-East Queensland.
ected from the weathered dolerite intrusion 2t miles south of W arrill View. N ume:mus other intm lr;ns rJ wtathered dolerites and porphyritic basalts are found ...
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#45Dolerites - Capel Curig and Betws-y-Coed. Description of 1:25 ...
Chapter 6 Dolerites[edit]. Intrusions of dolerite are most prominent in the northern and western parts of the district, where they cut ...
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#46Local and regional controls on the lateral emplacement of the ...
Sub-volcanic and related satellite intrusions record the delivery, ... Here we examine the structure of the Ben Hiant Dolerite satellite intrusion, ...
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#47Sedimentary xenoliths and dolerite patch pegmatites from an ...
Sedimentary xenoliths and dolerite patch pegmatites from an analcite basalt intrusion. H. G. Wilshire. American Journal of Science April 1961, ...
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#48The Birds' River dolerite complex
Identifier: Igneous rocks -- South Africa; Description: A plug-like intrusion of Karroo dolerite, near Dordrecht in the Eastern Cape of the Republic, ...
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#49November Field Work in Mali's Block #25
dolerite intrusion have been the priority because of the current geophysical ... PP Slide 3) the direct contact between the dolerite and the host rock is ...
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#50Inclusions in salt beds resulting from thermal metamorphism ...
... from thermal metamorphism by dolerite sills (eastern Siberia, Russia) ... The extent of the influence of intrusion is marked by the ...
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#51Isolation of Dolerite Intrusions by Borehole Magnetometry to ...
Summary The intrusions represented by gabbros - dolerites and dolerites of various structures in terms of magnetic susceptibility and ...
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#52Contact zone permeability at intrusion boundaries: new results ...
Despite being highly fractured either with subhori- zontal, subvertical or both fracture populations, the dolerite above and the sedimentary rocks below the ...
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#53Contact zone permeability at intrusion boundaries - USGS ...
The analysis of acoustic and optical BHTV images reveals two primary fracture sets within the dolerite and the sedimentary rocks—subhorizontal fractures, ...
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#5410 April 1965 | Intrusion of Major Dolerite Sills - Papers Past
Intrusion of Major Dolerite Sills J. Bradley, By Victoria University of Wellington [Received by the Editor, July 31, 1964.] Abstract Major dolerite...
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#55Diagenetic Modifications and Reservoir Heterogeneity ...
(b) Close-up view of a dolerite dyke intrusion in the Khyber limestone marked by yellow dotted line. Note that the marble is formed due to contact metamorphism ...
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#56TECHNICAL REPORT - International Nuclear Information ...
the intrusive contacts of granite where the original rock tran- ... time of the dolerite intrusion, only these parts of the verti-.
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#57Differentiation of the Dolerites of Tasmania. I - The University ...
At the time of its intrusion the dolerite magma was completely liquid, and analyses of chilled margins from widely separated localities show that it was ...
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#58Methylphenanthrenes from altered Kusanagi shales the MITI ...
rocks by a dolerite intrusion (Kusanagi shales from. Shinjo basin, Japan). . The %Rm data of the MITI Takada-heiya well were quoted from JNOC (1988) and ...
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#59INFLUENCE OF DOLERITES ON COAL RANK, MATURITY ...
the contacts of dolerite sills with surrounding rocks. ... Figure 2.8 Kamotaka Formation isopach map including dolerite intrusions.
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#60Seminário: The impacts of Tertiary dolerite dyke intrusions on ...
Seminário: The impacts of Tertiary dolerite dyke intrusions on the groundwater flow regime and saline intrusion into the Triassic Sherwood Sandstone, Northern ...
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#61Portrush NNR - Habitas
The Portrush Sill is a large dolerite intrusion which forms the promontory on which Portrush is built, terminating in the cliffs of Ramore Head.
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#62Detailed (1:10 scale) mapping of regolith structure in dolerite ...
of the regolith formed in a dolerite intrusion of the Louis formation below the Missi unconformity. Regional Geology. The Paleoproterozoic Flin Flon ...
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#63Dolerite, the Karoo's Fracking Game-Changer
Karoo Shale Gas or Water? Dr Aarnes explains: “The heating from the sills is potentially both 'good' and 'bad' for the shale gas. The intrusions ...
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#64Geochemistry of Dolerite and Metadolerite Dykes from ...
of dolerite dyke intrusion. Dykes are particularly prominent in the Barents Sea region, north of the fault zone, where they were first recorded by Holtedahl.
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#65dolerite的推薦與評價， 網紅們這樣回答
Dolerite definition: a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene ,... | Meaning, pronunciation, ...
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#66The quartz dolerite rock intrusion at Binny Craig Stock Photo
Download this stock image: The quartz dolerite rock intrusion at Binny Craig - HNXKCF from Alamy's library of millions of high resolution stock photos, ...
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#67Hantam Geology | SANBI
Dolerite sills and dykes are intrusions of igneous rock formed by molten magma from the Earth's mantle, which forced its way to the surface through cracks in ...
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#68dolerite: Topics by WorldWideScience.org
Fracturing may be locally enhanced along intrusion-host rock interfaces, at dyke-sill ... Dolerite intrusion is situated in the volcanic complex of Serra de ...
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#69a classification of onshore Phanerozoic intrusions in the UK
range of compositions between dolerite and syenite, or that it consists of dolerite and syenite. • Established geographical names for intrusive units have.
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#70Diagenetic history of Triassic sandstone from the Beacon ...
related to emplacement of dolerite intrusions and basalt flows ... contact diagenesis; zeolite cementation; dolerite intrusion; Beacon.
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#71Investigation of 3D magnetisation of a dolerite intrusion using ...
Investigation of 3D magnetisation of a dolerite intrusion using airborne full tensor magnetic gradiometry (FTMG) data. in: Geophysical Journal International ...
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#72Geochemistry and 40Ar/39Ar age of Early Carboniferous ...
The Early Carboniferous magmatic event in the southern Baltic Sea is manifested by dolerite intrusions. The presumable area in which the dolerite intrusions ...
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#73SHALLOW DOLERITE INTRUSION AND PHREATIC ...
Buy SHALLOW DOLERITE INTRUSION AND PHREATIC ERUPTION IN THE ALLAN HILLS REGION, ANTARCTICA by GRAPES R. H., REID D. L., McPHERSON J. G. (ISBN: ) from ...
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#74Igneous Intrusions - The Geological Society
Igneous intrusions form when magma cools and solidifies before it reaches the surface. Three common types of intrusion are sills, dykes, and batholiths (see ...
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#75THE FERRAR DOLERITE
THE FERRAR DOLERITE: AN ANTARCTIC ANALOG FOR MARTIAN BASALTIC LITHOLOGIES. AND WEATHERING PROCESSES. ... contemporaneous with Ferrar intrusion approximately.
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#76PALAEONTOLOGICAL IMPACT ASSESSMENT - SAHRIS
country rocks adjacent to the dolerite intrusions will have been thermally ... their fossil content may well have been compromised by dolerite intrusion.
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#77The Petrographic and Geotechnical Properties of a Dolerite ...
The presence of dolerite intrusions in underground collieries often causes damage to mining equipment, delays in mining schedules and loss in.
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#78A Survey of Mesozoic Dolerite Dikes from Western ... - EPIC
The age of the dolerite intrusions in the sediments at Fossilryggen interpreted on structural evidence has to be post-Permian.
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#79Dolerite dyke - Stock Image - E417/0275 - Science Photo Library
Dolerite dyke in the Namib desert. A dyke is an intrusion of igneous rock between an existing layer of rock.
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#80Dolerite - SlideShare
Introduction • Mineralogy • Textures • Classification of dolerite • Dolerite dyke • Formation of dolerite • Distribution • Uses ...
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#81Dolerite (also called Diabase) in an intrusion in to the a… | Flickr
Black Dolerite (also called Diabase) present as an intrusion in to the ancient Lewisian gneiss (approximately 1800 million years old) near Rhiconich in ...
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#82Initial Reports of the Deep Sea Drilling Project: A Project ...
The magnetic inclinations of the samples taken from this aphyric Unit A4 just below the dolerite intrusion are almost identical to that of the intrusion ...
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#83New Zealand Journal of Geology and Geophysics
This iron may have been partially remobilised into the sandstone after Ferrar Dolerite intrusion. DISCUSSION OF ALTERATION AT WINDY GULLY Effects of Ferrar ...
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#84Groundwater in Fractured Bedrock Environments: Managing ...
Other exploratory boreholes targeting dolerite also encountered intrusions within sandstone. Here the dolerite was much less fractured and zeolite was rare.
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#85IAEG/AEG Annual Meeting Proceedings, San Francisco, ...
... magnification 2x under cross-polarized light showing interstitial texture Table 1 Geotechnical properties of the dolerite intrusion Sample Density.
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#86dolerite - The Worlds of David Darling
Consisting of plagioclase feldspar and pyroxene, it is a widespread intrusive rock, quarried for crushed and monumental stone (known as "black granite").
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#87Titterstone Clee geomorphology
Titterstone Clee Hill owes its distinctive shape to the presence of a dolerite sill and a basalt intrusion. The resistant dolerite has protected the softer ...
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#88Annual Report of the Geological Commission ...
This great depth is due partiy to the cumulative effects of downthrow faults produced by dolerite intrusion , and partly to the increased northerly dip of ...
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#89Is diabase and dolerite? - Movie Cultists
Diabase, also called Dolerite, fine- to medium-grained, dark gray to black intrusive igneous rock. It is extremely hard and tough and is commonly quarried.
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#90Roscan Gold Makes New High Grade ... - Junior Mining Network
... the acid to intermediate intrusion crosscut by a dolerite sill. ... From the EM airborne geophysics, Roscan interprets the intrusive as ...
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#91Roscan Gold Makes New High Grade Gold ... - Digital Journal
From the RC chips, the gold mineralization at Disse occurs within the acid to intermediate intrusion crosscut by a dolerite sill.
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#92CHN ASX Ann 2021-12-02
Gonneville Intrusion and regional exploration ramping up ... JD220 intersected broad intervals of dolerite near the target depth and only.
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#93Great Southern Mining - Business News
... a significant intrusion-related gold system containing polymetallic credits ... mineralised quartz dolerite unit and gold-bearing assemblages that could ...
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#94CHALICE MINING LIMITED - MarketScreener
"The Gonneville Intrusion is ~500m thick and wide-open to the ... JD220 intersected broad intervals of dolerite near the target depth and ...
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