James W. Haggart

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The end-Triassic mass extinction is one of the five most catastrophic in Phanerozoic Earth history. Here we report carbon isotope evidence of a pronounced productivity collapse at the boundary, coincident with a sudden extinction among marine plankton, from stratigraphic sections on the Queen Charlotte Islands, British Columbia, Canada. This signal is(More)
New biostratigraphic data obtained from measured stratigraphic sections of Santonian through Maastrichtian age located along the west coast of North America necessitate changes to the currently accepted chrono-stratigraphic framework for this region of the North Pacifi c biotic province. We recognize and/or defi ne 12 molluscan zones over this interval of(More)
A previously uncollected fauna of ammonites, bivalves, and other molluscs, associated with radiolarian microfossils, has been newly recognized near Lawn Hill on the east coast of central Queen Charlotte Islands, British Columbia. The regional biostratigraphic zonation indicates that the Lawn Hill fauna is correlative with the Nostoceras hornbyense zonule of(More)
Eastern Bella Coola map area (NTS 093D), in west-central British Columbia, is a rugged part of the Coast Mountains, and includes the topographic divide and transit ion zone between the Coas t and In termontane morphogeological belts. The principal objectives of the Bella Coola Targeted Geoscience Initiative (TGI) are to assess little known Mesozoic volcanic(More)
The pri mary ob jec tive of this in ves ti ga tion is de tailed bed rock map ping and eval u a tion of eco nomic min er al iza tion po ten tial in the south ern and west ern Whitesail Lake map area (NTS 093E; Fig. 1, 2). Field work in 2005 con cen trated on the south west ern cor ner of the Whitesail Lake map area (NTS 093E/03, 04, 05, 06), ex tend ing work(More)
This in ves ti ga tion fo cuses on de tailed bed rock map ping and eco nomic min er al iza tion po ten tial in the south ern and west ern Whitesail Lake map area (NTS 093E; Fig 1). Field work in 2006 tar geted the west ern and south west ern por tions of the map area, spe cif i cally NTS 093E/04, 05, 06, 11 and 12. Map ping in these ar eas pro vides link(More)
Eastern Bella Coola map area (NTS 093D), in west-central British Columbia, is a rugged part of the Coast Mountains, and includes the topographic divide and transit ion zone between the Coas t and In termontane morphogeological belts. The principal objectives of the Bella Coola Targeted Geoscience Initiative (TGI) are to assess little known Mesozoic volcanic(More)
The fossil record is the only direct source of data for studying modes (patterns) and rates of morphological change over long periods of time. Determining modes and rates is important for understanding macroevolutionary processes, but just how modes and rates vary within a taxon, and why, remain largely unaddressed. We examined patterns of morphological(More)
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