A kick has been taken, the well shut in, and it’s been many months since your last well control school. What do you do now? The following criteria should be used as a guideline for developing a well kill plan and discussed with both field and office personnel before initiating well kill circulation. Operational policy or bridging document may dictate type of well control method to be employed  <...>

In Advances in Volcanology, scientists from highly active volcanic countries, such as Japan, Italy, and New Zealand, as well as others from Germany, Portugal, and Russia, debate less commonplace themes. Topics from classic field volcanology, including practical problems with volcanic stratigraphy in oil exploitation, to the most modern techniques related to tomographic studies are discussed.

Anniversaries always cause us to reflect upon where we have been and where we are going. Exactly 100 years before the publication of this volume, the first paper which calculated the half-life for the newly discovered radioactive substance U-X (now called 234Th), was published. Now, in this volume, the editors Bernard Bourdon, Gideon Henderson, Craig Lundstrom and Simon Turner have integrated a group of contributors who update our knowledge of U-series geochemistry, offer an opportunity for nonspecialists to understand its basic principles, and give us a view of the future of this active field of research. It was prepared in advance of a two-day short course (April 3-4, 2003) on U-series geochemistry, jointly sponsored by GS and MSA and presented in Paris, France prior to the joint EGS/AGU/EUG meeting in Nice.  <...>

A variety of global and regional classifi cation schemes for uranium deposits have been proposed in the past by a number of geoscientists including Heinrich (1958), Roubault (1958), Ruzicka (1971), Ziegler (1974), Mickle and Mathews (1978), Mathews et al. (1979), Nash et al. (1981), Barthel et al. (1986), Dahlkamp (1989, 1993), McKay and Miezitis (2001) mainly for deposits in the western hemisphere and by Kazansky and Laverov (1977), Boitsov (1989, 1996),