We are improving our search experience. To check which content you have full access to, or for advanced search, go back to the old search.

Search

Please fill in this field.
Filters applied:

Search Results

Showing 901-912 of 912 results
  1. Origin and differentiation of Triassic dolerite magmas, North Carolina, USA

    Ten dolerite dikes intruded into Triassic fault troughs in the Piedmont area of North Carolina have been analyzed for the contents of major elements...

    Paul C. Ragland, John J. W. Rogers, Philip S. Justus in Contributions to Mineralogy and Petrology
    Article 01 November 1968
  2. Petrology of the Nandewar Volcano, N.S.W., Australia

    The Nandewar Mountains, N.S.W., Australia, are the remains of a Miocene continental alkaline volcano whose products range from olivine basalts to...

    Article 01 January 1969
  3. Zur Geologie der Danakil-Senke

    Geological and geophysical investigations in the Northern part of Afar-Region were carried out by a group of scientists in 1967 and 1968. The...

    D. Bannert, J. Brinckmann, ... H. Mayrhofer in Geologische Rundschau
    Article 01 February 1970
  4. Paläoklimatologische eindrücke aus australien nebst einigen allgemeinen Bemerkungen zur älteren Klimageschichte der Erde

    Some observations on the tillites of Australia (especially in the Proterozoic and younger Paleozoic), made during a trip through Australia and mostly...

    Martin Schwarzbach in Geologische Rundschau
    Article 01 May 1964
  5. Zur Stratigraphie der Kaisberg-Schichten (oberes Namur) im Ruhr-Karbon

    The Kaisberg-formation (Upper Carboniferous, Ruhr-district) is about 120 m thick. Its most remarkable horizon is the Kaisberg-conglomerate (18–30 m),...

    Ulrich Rosenfeld in Geologische Rundschau
    Article 01 December 1967
  6. The structural control and genesis of alkaline rocks in central Kenya

    In the Nairobi area and the adjacent region of the Gregory Rift Valley of Kenya two series of Cainozoic alkaline volcanic rocks, of mildly and...

    E. P. Saggerson in Bulletin Volcanologique
    Article 01 March 1970
  7. An excursion to the Bayuda volcanic field of Northern Sudan

    A cluster of well-preserved recent volcanoes in the northern Bayuda Desert make up a more or less continuous field some 520 km 2 in area surrounded by...

    D. C. Almond, Farouk Ahmed, Badr Eldin Khalil in Bulletin Volcanologique
    Article 01 June 1969
  8. The cainozoic volcanic succession in Ethiopia

    The discovery of extensive Pliocene pantellerite welded tuffs in southern Ethiopia necessitates a revision of the Cainozoic volcanic succession...

    P. A. Mohr in Bulletin Volcanologique
    Article 01 February 1968
  9. A Comparative Study of the Diagenetic Alteration of Clay Minerals in Mesozoic Shales from Papua, New Guinea, and in Tertiary Shales from Louisiana, U.S.A.

    Gradual change from 60% montmorillonite/40% illite randomly interstratified clay minerals at 3500 ft depth to 20% montmorillonite/80% illite at...

    J. C. van Moort in Clays and Clay Minerals
    Article 01 February 1971
  10. The mineralogy and geochemistry of a nickeliferous laterite profile (Greenvale, Queensland, Australia)

    A laterite profile on serpentinite at Greenvale, Australia, has been investigated in order to elucidate the formation of the secondary minerals and...

    H. E. Zeissink in Mineralium Deposita
    Article 01 July 1969
  11. Faults

    Where rocks have undergone observable displacement along a macroscopic shear or fracture plane in the earth they are said to have been faulted. The...
    E. Sherbon Hills in Elements of Structural Geology
    Chapter 1972
  12. Radioactivity and Age of Minerals

    This chapter is chiefly devoted to methods of dating rocks and minerals. Although geologists have long known much about the relative order in which...
    J. T. Wilson, R. D. Russell, R. M. Farquhar in Geophysik I / Geophysics I
    Chapter 1956
Did you find what you were looking for? Share feedback.