VII.—On Plant Beds of Tertiary age in British Columbia
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Down's syndrome and maternal age in British Columbia, 1972--75.
The occurrence of Down's syndrome in British Columbia during the period 1972-75 is analyzed with respect to maternal age distribution. This period is compared with previously studied periods. No marked trends are evident in the various age group-specific rates studied. The significance of these findings is discussed in connection with a possible role of environmental nutagens in induction of Do...
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Conodonts from the Ladinian-Carnian boundary interval in British Columbia are described. The study interval embraces the upper Ladinian/lower Carnian Maclearni, Sutherlandi, Desatoyense, Obesum, and Nanseni ammonoid zones. The following new species are described: Metapolygnathus acuminatus, Metapolygnathus intermedius, Metapolygnathus lobatus, Metapolygnathus zonneveldi, Neogondolella liardensi...
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The interior of British Columbia contains a number of fault bounded Tertiary basins that contain coal (Figure 1). This paper brings together existing data that aids in assessing the coalbed methane (CBM) potential of the basins and presents new data on some of the basins. The CBM potential of the basins ranges from up to 1 tcf at Hat Creek to a few bcf at Coal River. In all cases the resources ...
متن کاملDiatreme Breccias in British Columbia*
INTRODUCTION Over the last decade considerable interest has been expressed in diarreme breccias ofpc~ssible kimberlitic affinity in British Columbia (Fipke, 1983; Fipk.: and Capell, 1983; Grieve, 1981 and 1982; Roberts, et a/., 1980; Woodcock, 1978; etc.). This interest has been heightened by the reported recent discovery of diamonds in pipes north of Golden (Durnmet, rr a / . . 1985; Northcote...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1896
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800131875