The compositional development of tills overlying the South Mountain Batholith, Nova Scotia

Cover of: The compositional development of tills overlying the South Mountain Batholith, Nova Scotia |

Published by Nova Scotia Department of Natural Resources in Halifax .

Written in English

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  • Geology - Nova Scotia - South Mountain batholith

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Book details

ContributionsStea, R.R.
The Physical Object
Pagination52 p. + 2 maps in pocket
Number of Pages52
ID Numbers
Open LibraryOL22037753M

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The Compositional Development of Tills Overlying the South Mountain Batholith, Nova Scotia Nova Scotia Department of Natural Resources Mineral Resources Branch.

Mapping of quartemary deposits on the South Mountain Batholith (SMB) has resulted in a four-fold subdivision of tills, divided primarily on the basis of clast lithology, texture, stratigraphic position and morphology.

Three tills have clast lithologies characterized by granites eroded from Nova Scotia book South Mountain Batholith. The oldest granite till is a compact till of restricted distribution, mainly observed in drumlin cores.

Geology of the South Mountain Batholith, Southwestern Nova Scotia. Nova Scotia Department of Natural Resources Mineral Resources Branch Open File Report ME By M. MacDonald. Table of Contents. Cover and Table of Contents; Chapter 1. Overview; Chapter 2.

The Late Devonian South Mountain Batholith (SMB) of Nova Scotia is the largest batholith of the northern Appalachians. The peraluminous granitic rocks range from biotite granodiorite to leucogranite. Samples collected from a drill core of the Scrag Lake granodioritic pluton of the western SMB are chemically homogeneous from the surface to a Cited by: 7.

This intriguing theory can be tested with data from Nova Scotia. Drumlins described in this study, and elsewhere in Nova Scotia, are largely made up of till and are surrounded by ice-scoured bedrock, inscribed with two or more sets of crossing striae.

However, a study of the relationship between till clasts and matrix in tills overlying the South Mountain Batholith of southwestern Nova Scotia (Graves et al., ) indicated that significant dispersal of matrix, or possi- bly inheritance from underlying till sheets, may occur in tills with extremely short renewal distances (~.

The provenance of tills overlying the eastern part of the South Mountain Batholith, Nova Scotia; Maritime Sediments and Atlantic Geology, v. 24, p. Hickox, C. F., Jr., Pleistocene geology of the central Annapolis Valley, Nova Scotia; Nova Scotia Department of Mines, Memoir 5, 36 p.

South Mountain (French: Montagne du Sud; Gaelic: Beinn a Deas) is a Canadian range on the mainland portion of Nova Scotia.A granitic ridge stretching from the Annapolis Basin to Mount Uniacke, it forms the southern edge of the Annapolis Valley and shelters the valley from the climate effects of the pelagic coast along the Atlantic er with North Mountain, the two ranges form the.

Highlands, Nova Scotia; Geological Survey of Canada, Memoir92 p. Finck, P. and Stea, R. The compositional development of tills overlying the South Mountain Batholith; Nova Scotia Department of Natural Resources, Mines and Minerals Branch, Paper51 p.

Keppie, J. Major structural zones and. Finck, P.W., Stea, R.R., The Compositional Development of Tills Overlying the South Mountain Batholith, Nova Scotia. Paper Nova Scotia Department of Natural Resources, Mines and Energy Branch Nova Scotia. 52 p. The peraluminous South Mountain Batholith (SMB) of Clarke and Muecke () is the largest intrusion in the MZ and consists of a number of cogenetic phases ranging in composition from grano- diorite to leucogranite (MacDonald et al., ).

Finck, P.W. and Stea R.R () The compositional development of tills overlying the South Mountain Batholith, Nova Scotia. Nova Scotia Dept. Natl Resour. Location of the study area and general geological setting of the northern Appalachians, after Williams ().

Generalized map of South Mountain Batholith, Nova Scotia, showing localities. The study focused on soil (glacial till is the parent material) developed over these three major bedrock types: the Cambrian-Ordovician Goldenville and Halifax groups, and Devonian granite of the.

Consultez le vol numéro 1, april de la revue Atlantic Geology sur Érudit. Discipline: Sciences de la terre. basement and its intrusion by Cretaceous dykes, o ff shore southeast aureole of the South Mountain Batholith, southern Nova Scotia, Nova Scotia, Canada, Can.

Earth Sci., 30, – Geol. Well water samples collected from Goldenville Group and South Mountain Batholith bedrock aquifers in southern Nova Scotia were associated with the highest frequency of arsenic exceeding the safe.

The Maritimes Basin outcrops came to world attention in the s and subsequent decades, when Sir Charles Lyell, Sir William Logan, first director of the Geological Survey of Canada, and Sir John Dawson, an early paleoecologist, described the coastal cliffs and their fossils (Scott,Rygel and Shipley,Falcon-Lang and Calder,Calder, ; Fig.

South Mountain, a mile-long ridge, contained several passes, but Crampton’s Gap and Turner’s Gap were the most important. The National Road ran through Turner’s Gap to the north, and. The San Rafael Swell is a monocline, or large step-like fold, located in central Utah. The photos below were taken on the east and southeast portion of this fold, and show tilted sedimentary beds and canyons from different perspectives.

Background. South Mountain is the name given to the continuation of the Blue Ridge Mountains after they enter is a natural obstacle that separates the Hagerstown Valley and Cumberland Valley from the eastern part of Maryland. After Lee invaded Maryland, a copy of an order, known as Special Orderdetailing troop movements that he wrote fell into the hands of McClellan.

The Nova Scotia margin is located at the transition from volcanic margins to the south, e.g. the southern Baltimore Canyon Trough (Talwani & Abreu ), to non volcanic margins to the north, e.g.

the Grand Banks and Newfoundland Basins (Reid ; Funck ). At the southern margin of Nova Scotia near Georges Bank, a strong, linear magnetic. Whether these geochemical results are in part due to fractionation by crystal compaction and filter pressing during the formation of schlieren or in the development of compositional diversity in general in the Tuolumne batholith is debated (Bateman and Chappell, ; Reid et al., ; Glazner et al., ; Burgess and Miller, ).

Deep drill hole in the Devonian South Mountain batholith, Nova Scotia: a potential for hidden mineral deposits within the batholith. A synopsis of the geology of the Cobequid Highlands, Nova Scotia. New U-Pb (zircon) age and geochemistry of the Wedgeport pluton, Meguma terrane, Nova Scotia.

The Bloody Creek structure is located in the South Mountain Batholith, an about – Ma old composite texture and composition, the batholith has been subdivided into two groups of plutons, termed Stage 1 (older) and Stage Fig.

Location of Bloody Creek structure. The structure is located 15 km south of Bridgetown, Nova Scotia. d) maintains uniform composition as it melts and becomes magma.

e) may be even hotter than surface lava because of the pressure of overlying rock. Volatile-rich magma develops gas bubbles as it rises, and this creates even more buoyant force to move the magma upward more aggressively.

The geology of Massachusetts includes numerous units of volcanic, intrusive igneous, metamorphic and sedimentary rocks formed within the last billion years.

The oldest formations are gneiss rocks in the Berkshires, which were metamorphosed from older rocks during the Proterozoic Grenville orogeny as the proto-North American continent Laurentia collided against proto-South America.

Search the history of over billion web pages on the Internet. Start studying Historical Geology Chapter 11 Quiz. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Start studying HISTORY & GEOGRAPHY LIFEPAC TEST.

Learn vocabulary, terms, and more with flashcards, games, and other study tools. King, M. Geology of the Meteghan River-Yarmouth area: a progress report Raeside, R.

and Mahoney, K. The on the southwest Nova Scotia mapping project; in contact metamorphic aureole of the South Mines and Minerals Branch, Report of Activities Mountain Batholith, southern Nova Scotia;ed.

MacDonald; Nova. This Till is composed of debris abraded by glacial factors from the south. The phase IV ice advance was the last glacial event to mark the area (13, – 10, y.a.) it deposited debris abraded from the localities due east of this region and placed deposits as, the Rawdon Till, which are due to a.

It is separated from the Middle Aquifer by a till unit, herein referred to as the lower aquitard. The lower aquitard is a reddish-brown lodgement till layer that tends to be dominantly dayey of silty in composition.

The till forms a dense layer at depth and has been found to occur up to 38 m in thickness (Giudice ). Tweedale, F., Hanley, J., Kontak, D.J., and Rogers, N.

(): Using petrographic observations and evaporate mound chemistry of fluid inclusions to assess metal fertility and fluid:rock interaction in a large peraluminous batholith: A case study of the mineralized (Sn-W-U-Cu-Zn-Ag) South Mountain Batholith, Nova Scotia, Canada.

Subductionand Mountain Building • Island arc mountain building • Where two ocean plates converge and one is subducted beneath the other • Volcanic island arcs result from the steady subduction of oceanic lithosphere –Continued development can result in the formation of mountainous topography consisting of igneous and metamorphic rocks.

Nova Scotia Department of Natural Resources, Report MEpp. White, C.E. Preliminary bedrock geology of the New Germany map sheet (NTS 21A/10), southern Nova Scotia. In Mineral Resources Branch, Report of Activities Edited by D.R.

MacDonald. Nova Scotia Department of Natural Resources, Report MEpp. The compositional development of tills overlying the South Mountain Batholith, Nova Scotia. Nova Scotia Department of Natural Resources, Minerals and Energy Branch Paper52 p. Gabelman, J. pact subglacial lodgement and meltout units and a thin overlying supraglacial meltout (ablation) unit.

The drumlin (lower) till is the locally preserved till depos­ ited during the Illinoian glaciation and consists chiefly of a compact subglacial lodgement unit. These tills are highly variable in texture, composition.

The North structure is located in Annapolis County, Nova Scotia, approximately 10 km south of Bridgetown (44[degrees] 45' 40" N, 65[degrees] 14' 40" W; Fig. Both it and the nearby Bloody Creek structure are currently submerged 1 to 2 m below the Dalhousie Lake reservoir, a hydroelectric development built in the early s.

The role of fluids in the late-stage evolution of the South Mountain batholith, Nova Scotia: further geochemical and oxygen isotopic studies Atlantic Geology. 1 Kerrich R, Wyman D. Geodynamic setting of mesothermal gold deposits: an association with accretionary tectonic regimes Geology.

Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand and silt can be carried in suspension in river water and on reaching the sea bed deposited by buried, they may eventually become.Isostasy, Convergent-margin horizontal compression causes horizontal shortening and vertical thickening.

This processes create a thick crustal root beneath mountain ranges. Adding igneous rock can thicken the crust. Volcanic material is added to the surface.

Plutons are added at mid-crustal levels.The composition of till reflects the geology of the region the ice has flowed over. This means that till from different parts of a large glacier will contain different types of rocks and minerals.

Sometimes precious minerals in till can be traced back to their bedrock source. Geologists compare maps that show where there are high concentrations.

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