Skip to main content

9 Result(s)

within Science, multidisciplinary Remove this filter D Walton Remove this filter

and

  1. No Access

    Article

    Geomagnetic intensity in Athens between 2000 BC and AD 400

    MEASUREMENTS of the intensity in Athens of the geomagnetic field between 2000 BC and AD 400 are reported here. The material from which the intensity was determined consisted primarily of sherds from the Agora exc...

    D. WALTON in Nature (1979)

  2. No Access

    Article

    Time–temperature relations in the magnetization of assemblies of single domain grains

    A theory for important magnetization processes such as magnetic viscosity and the production of a moment on cooling in a magnetic field is presented here. The results for viscous phenomena differ from those ob...

    D. Walton in Nature (1980)

  3. No Access

    Article

    Early archaeological sites, hominid remains and traces of fire from Chesowanja, Kenya

    Recent investigations of Lower Pleistocene sites at Chesowanja have yielded in situ Oldowan and Oldowan-like stone artefacts, evidence of fire and a fragmentary ‘robust’ australopithecine cranium. Burnt clay foun...

    J. A. J. Gowlett, J. W. K. Harris, D. Walton, B. A. Wood in Nature (1981)

  4. No Access

    Article

    Errors and resolution of thermal techniques for obtaining the geomagnetic intensity

    Techniques designed to obtain the intensity of the geomagnetic field by thermal demagnetization are subject to error due to differences between the ancient and laboratory cooling rate1–3 and alteration in the phy...

    D. Walton in Nature (1982)

  5. No Access

    Article

    Viscous magnetization

    The first test of a theory of viscosity has been possible using experimental results published recently by Dunlop1. This has been accomplished by actually calculating the moment produced as a function of time and...

    D. Walton in Nature (1983)

  6. No Access

    Article

    Re-evaluation of Greek archaeomagnitudes

    A new technique is used to determine the secular variation of the geomagnetic ancient field in Athens. The results indicate that published Greek archaeomagnitudes were seriously affected by alteration. It is s...

    D. Walton in Nature (1984)

  7. Article

    Magnetic mixture

    Rock and Mineral Magnetism.

    D. Walton in Nature (1984)

    Download PDF (2219 KB)

  8. No Access

    Article

    Greek archaeomagnitudes (reply)

    D. WALTON in Nature (1985)

  9. No Access

    Article

    Improving the accuracy of geomagnetic intensity measurements

    Many palaeomagnetists believe that, when properly measured, geomagnetic intensities can be obtained with a precision of better than 10% (R. S. Coe, personal communication). But published results do not appear ...

    D. Walton in Nature (1987)