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Friday, May 1, 2020 | History

2 edition of gravity investigation of two Precambrian granites in South Norway found in the catalog.

gravity investigation of two Precambrian granites in South Norway

Scott B. Smithson

gravity investigation of two Precambrian granites in South Norway

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  • 5 Currently reading

Published by Norges geologiske undersøkelse in Oslo .
Written in English

    Places:
  • Norway,
  • Agder.,
  • Telemark fylke.
    • Subjects:
    • Gravity anomalies -- Norway -- Agder.,
    • Gravity anomalies -- Norway -- Telemark fylke.,
    • Geology, Stratigraphic -- Precambrian.,
    • Granite -- Norway -- Agder.,
    • Granite -- Norway -- Telemark fylke.

    • Edition Notes

      Statementby Scott B. Smithson.
      SeriesNorges geologiske undersøkelse nr. 214B, Norges geologiske undersøkelse (Series) ;, nr. 214B.
      Classifications
      LC ClassificationsQE281 .A2 nr. 214B, pt. 1, QE462.G7 .A2 nr. 214B, pt. 1
      The Physical Object
      Pagination54-140 p.
      Number of Pages140
      ID Numbers
      Open LibraryOL5083540M
      LC Control Number74154637

      Focusing on the Precambrian in the central part of the Fennoscandian Shield, the book combines the results from modern geological and geophysical research into a detailed petrologic, lithologic, and structural synthesis and interpretation of the Archean and Proterozoic of Finland. It will be of value to anyone interested in the evolution of the shield in particular and in Precambrian geology. Precambrian Earth. STUDY. PLAY. Zircon PLAY. Zircon. Stable and common mineral that scientists often use to date ancient rock. Precambrian. Period of Time including the Archean,Hadean and Proterozoic Eons. Evidence from meteorites. Suggest that earth is more than Billion years old. Gravitational Contraction. The process in which gravity. The Precambrian in the USSR. In the USSR early Precambrian deposits are very widely found. They have been best studied on the Baltic Shield and in Eastern Siberia. The early Precambrian formations of the Baltic Shield are represented by rock formations of Archean and Lower and Middle Proterozoic age. OCLC Number: Description: xiii, pages: illustrations, graphs, maps ; 26 cm. Contents: Age of metamorphism and plutonism in the Jurassic-Cretaceous Rangitata orogenic belt, South Island, New Zealand / C.J.D. Adams --Determination of the isotopic abundance of boron in meteorites and tektites / E.K. Agyei and C.C. McMullen --MMhb a new ⁴⁰Ar-³⁹Ar dating standard / E.C.


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gravity investigation of two Precambrian granites in South Norway by Scott B. Smithson Download PDF EPUB FB2

Morton, R.D. ‘Geological investigations in the Bamble Sector of the Fennoscandian shield, S. Norway. ‘Granite studies I: a gravity investigation of two Precambrian granites in South Norway’. Nor geol. Unders. B, 51– Google by: Gravity interpretation of the southern Oslo gravity investigation of two Precambrian granites in South Norway book and ad- jacent Precambrian rocks, Norway, Tectonophysics, A Bougucr gravity anomaly map covers the southern Oslo graben containing the Oslo igneous prov- ince and the Precambrian shield on the eastern flank of the by: THE PRECAMBRIAN HOLUM GRANITE, SOUTH NORWAY 23 by the limited accessibility of those areas.

On the other hand, the Holum granitic pluton is well suited for an integrated geological-grav­ ity study because it combines extensive outcrops (about 50% exposed) with numerous roads and relatively low relief, especially for Size: 2MB. The intrusive granites of the Farsund area, south Norway: Their interrelations and relations with the Precambrian metamorphic envelope.

Norsk Geologisk Tidsskrift, Vol. 59, pp. Oslo Gravity investigation of two Precambrian granites in South Norway book l%X. A new geological map, gravity investigation of two Precambrian granites in South Norway book about km' of the area around Farsund, south Norway, is presented.

The country rock gneisses have. The Precambrian Grimstad granite, South Norway, has been studied by petro graphical, chemical and x-ray crystallographical analysis.

It has a semi-circular out line and is partly rimmed by an agmatite. Eight different rock types are found within the granite, but the. investigated by NILSSEN (), and a gravity study was carried out by SMITHSON (a). Specimens collected as part of a detailed petro­ chemical study (DICKSON and BALL ) provided a basis for the re-investigation of the feldspars reported in this paper.

The feldspars are presently being investigated in two stages: l) K-feldspar obliquity. ELSE-RAGNHILD NEUMANN Neumann, E. R.: The Precambrian Vallesvær granite, south Norway. Petro­ graphy and major element relations. Norsk Geologisk Tidsskrift, Vol. 52, pp. Oslo The main element- and Rb-distribution has been established in the Pre­ cambrian Vallesvær granite, south Norway, and in the surrounding gneisses.

The Geological Survey of Norway (NGU) is performing an integrated study of the groundwater resources of the Precambrian Iddefjord Granite of Hvaler municipality in southeastern Norway. Linear fracture zones are identifiable from topographic maps, aerial photos, field inspection and geophysics.

The two consistently most successful geophysical. The intrusive granites of the Farsund area, south Norway. Norsk Geologisk Tidsskrift, Vol. 52, pp. Oslo Field and chemical data reveal three separate intrusive granites in the Far­ sund area: a dark charnockite, a light hornblende granite, and a light biotite granite.

The previous view that these rocks belong to a single, composite. The granites exposed around lake Mykle constitute two discrete western granite massif,the subject of the present paper, is an intrusive complex, with larvikite as count ry rocks making up the topographic highs and occurring as stoped blocks within the types of granite were identified: a marginal, fine-to medium­.

The intrusive granites of the Farsund area, south Norway: Their interrelations and relations with the Precambrian metamorphic envelope Torgeir Falkum J. Richard Wilson.

DEFORMED AGGLOMERATEIN PRECAMBRIAN MIGMATITE, S. NORWAY Fig. Larger magnifi­ cation of the inclusion (Fig. 6) with a blasto­ ophitic texture. Lower nicol, magnification 18x.

and almost pinched apart as seen in Fig. The platy structure is certainly gravity investigation of two Precambrian granites in South Norway book.

Granite studies, I. A gravity investigation of two Precambrian granites in South Norway. Article. Join ResearchGate to discover and stay up-to-date with the latest research from leading.

A gravity investigation of two Precambrian granites in South Norway, Nor. Geol. Unders. B () 60 V.V. Beloussov, The Crust and Upper Mantle of the Continents ( by: Gravity investigations have been particu- larly extensive in the Oslo Graben area proper which is associated with relatively pronounced residual anomalies peaking around 25 mGal.

Ramberg's () mass calculations for the graben revealed a striking preponderance of dense mafic to ultramafic rocks over felsic rocks roughly by a ratio of Cited by: A gravity investigation of two Precambrian granites in south Norway; II. The Precambrian FlD granite, a geological and geophysical investigation.

[ 2 vol., vol. Radiogenic isotope systematics of the Herefoss granite, South Norway: an indicator of Sveconorwegian (Grenvillian) crustal evolution in the Baltic Shield.

Abstract. A new PbPb mineral isochron dates the crystallization of the Herefoss granite (South Norway) to ± 8 Ma, confirming earlier RbSr evidence of a late Sveconorwegian (Grenvillian) by: Based on surface density measurements and gravity interpretation, a constant density contrast between granite and metamorphic rocks extends to depths ranging from 5 to 15 km, and values of S-8 km are most common although for certain Precambrian granites this depth may be as low as 2 km [17, 28].Cited by: Clast studies in the Late Precambrian Moelv Tillite and Osdal Conglomerate, Sparagmite Region, south Norway JOHAN PETTER NYSTUEN & TORMOD SÆTHER Ny stuen, J.

& Sæther, T.: Clast studies in the Late Precambrian Moelv Tillite and Osdal Conglomerate, Sparagmite Region, south Norway. Norsk Geologisk Tidsskrift, Vol.

59, pp. Oslo Petrographical and chemical investigations of a Precambrian gabbro intrusion, Hiåsen, Bamble area, South Norway.

Norsk Geologisk Tidsskrift, Vol. 48, pp. This wide-ranging discussion of Precambrian rocks includes contributions from a diverse array of authors actively engaged in investigations of various aspects of U.S. Precambrian geology. Summary discussions by the editors of the five major chapters place these contributions in a.

Isolated exposures (inliers) of Precambrian rhyolites and granites (1, m.y. old) crop out in the Fox River valley and in the Baraboo area of south-central Wisconsin. Gravity investigation and geological interpretation of the ultramafite complex of Åheim, A gas chromatographic/mass spectrometric determination of some organic compounds of two Norwegian rocks.

New light on the precambrian Holum granite, South Norway. Turning to the spatial arrangement of faults and fracture zones on a wide regional scale, Gabrielsen et al. () describe fault distributions in the Precambrian basement of South Norway. Remote. Falkum T, Wilson JR, Annis MP, Fregerslev S, Zimmermann HD () The intrusive granites of the Farsund area, South Norway.

Norsk Geol Tidss – Google Scholar Field D, Råheim A () Rb-Sr total rock isotope studies on Precambrian charnockitic gneisses from South Norway: evidence for isochron resetting during a low-grade Cited by: Abstract.

The results of a preliminary study of REE evolution and fluid inclusions in the Homme biotite granite are presented. Both sets of data are tentatively related to one of two mechanisms: (1) assimilation of felsic granulite facies gneisses, and/or (2) formation of the Homme granite by fractionation from a charnockitic : T.

Falkum, J. Konnerup-Madsen, J. Rose-Hansen. Precambrian Granites—The Genesis Rocks. Tentatively, I identified the Precambrian granites as primordial (or Genesis) rocks because they (1) contain the polonium halos, (2) are the foundation rocks of the continents, and (3) are devoid of the fossils seen in sedimentary rocks.

Restoring the South Norway Precambrian Region to its hypothetical pre-displacement position would bring an inferred post-Svecofennian, cordilleran-type orogenic segment in South Norway into alignment with a coeval, fragmentary, cordilleran-type orogenic belt in Southwest by: 4.

The isotopic composition of lead in potassium feldspars from some b.y. old North American igneous rocks Granite studies, I. A gravity investigation of two Precambrian granites in South.

Two of the southernmost sample areas-the Vånga granite (Geisler and Schleicher ) and the Götemar granite (Söderlund et al. )-have younger intrusion ages of Ga and were not heated. Granite studies I: a gravity investigation of two Precambrian granites in South Norway Smithson, Smithson Granite studies II: the Precambrian FIa granite, a geological and geophysical interpretation.

Uranium in Precambrian granitic rocks of the St. Francois Mountains, southeastern Missouri: With comments on uranium resource potential: USGS Open-File Report [Nash, J.

Thomas] on *FREE* shipping on qualifying offers. Uranium in Precambrian granitic rocks of the St. Francois Mountains, southeastern Missouri: With comments on uranium resource potential: USGS Author: J. Thomas Nash. Abstract. Two major periods with orogenic and magmatic activities are responsible for the formation of the Late Proterozoic crust underlying large parts of Norway and Sweden, the Gothian between about Ga and Ga ago and the Sveconorwegian between about Ga and Ga by: The Precambrian rocks are mostly granites and gneisses.

The complex history which has led to their origin can partly be reconstructed. Large-scale tectonic events such as the collision of continents, which have changed rocks strongly and over a wide area, have happened at least three times: billion years ago (Archaean), billion years.

Precambrian rhyelites and granites in south-central Wisconsin: Field relations and geochemistryCited by: Gravity. Created by. joahna Key Concepts: Terms in this set (10) In this photograph, Paleozoic sandstone rests depositionally on Precambrian granite.

What events must have occurred before deposition of the sandstone. This figure shows two sections that partially overlap in age. Dashed lines show how the two sections correlate. The boundary between the two units indicates that for a time there was either erosion or no deposition.

(quiz 3) The following image of the famous Siccar Point in Scotland, where the ideas of unconformites were first formalized. Start studying Chapter 9. Learn vocabulary, terms, and more with flashcards, games, and other study tools. A comparison of the Breccia-Metagabbro-Syenite Complex at Fjone, South Central Norway, with some Explosion-Breccia-Appinite Complexes in the Caledonian.

"The Making of a Land - Geology of Norway" takes the reader on a journey in geological time, from primordial times to the present day.

A fantastic journey from the summits of Norway's spectacular rugged and weather-beaten mountains to the riches concealed in the sedimentary rocks on the continental shelf.

This book displays the treasures of Norwegian geology for everyone to see.5/5(2). GEOLOGY TEST 3! (Precambrian Earth and Life History) Pdf.

Flashcards. Learn. Write. Spell. this period pdf continents that consist of rocks with composition similar to granite. outward from the shields are these and they are made up of buried Precambrian rocks that underlie much of each continent. methane. the Earth originally.This second and completely revised edition of Download pdf Report No.

6 provides a comprehensive review and report of work carried out since It emphasises the relationship between, and the correlation of, the units in to which the Precambrian rocks of England, Ireland, Scotland, Wales and the Channel Islands have been divided.

The chapters also provide a comprehensive bibliography of the work.Sandia granite (1, m.y.) are all similar, and (4) "liquid de-formation" has affected some ebook.

Tijeras Canyon Site The newly discovered occurrence of orbicular rock is approximately 16 km south-southeast of the La Luz Trail outcrops and km west of the Sandia granite—Cibola gneiss contact in Tijeras Canyon (fig.

2).