| 41. | Further conservation work and a geophysical survey were carried out in 1999 and 2000 by the Cotswold Archaeological Trust.
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| 42. | In 1986 he set up Geophysical Surveys of Bradford ( GSB ), an independent consultancy in geophysics for archaeology.
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| 43. | Further to this and with the agreement of Durham University, Historic Scotland funded a geophysical survey of Palace Green.
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| 44. | It was delineated and named by Joseph Curray and David Moore following a geological and geophysical survey in 1968.
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| 45. | The henge was discovered at the Hill of Tara archaeological complex in geophysical surveys carried out between 1999 and 2001.
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| 46. | In 1997, a geophysical survey and aerial imaging was undertaken which revealed wall lines of buried buildings and former ponds.
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| 47. | Petroleum exploration within the basin has been minimal, consisting of a small number of geophysical surveys and two stratigraphic wells.
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| 48. | Due to its rocky landscape and minerals, a volcanic and geophysical survey was conducted by the Geological Survey of Pakistan.
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| 49. | In 1974 the State of Alaska's Division of Geological & Geophysical Surveys estimated that the field held of natural gas.
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| 50. | Niugini Mining said a second drilling rig is being mobilized and further drilling will take place following the completion of geophysical surveys.
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