Report - Geoscience BC
Report - Geoscience BC
Report - Geoscience BC
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idealized stratigraphy of the Nechako Basin<br />
Jurassic Cretaceous Eocene<br />
Endako Group<br />
basalt lavas<br />
and breccias (11)<br />
Ootsa Lake<br />
volcanic (9)<br />
Ootsa Lake<br />
sedimentary (9)<br />
Kasalka<br />
Group<br />
(8)<br />
Jackass Mtn.<br />
Group (17)<br />
Taylor Creek and<br />
Skeena Groups<br />
(10)<br />
Spences Bridge<br />
Group (9)<br />
Relay Mtn.<br />
Group (7)<br />
Hazelton Group<br />
(10)<br />
Ladner Creek<br />
Group (11)<br />
lithologies collected<br />
andesite, gabbro<br />
basalt to rhyolite<br />
lavas and tuffs<br />
greywacke, conglomerate,<br />
basalt breccia<br />
intermediate lava<br />
flows and breccias<br />
shales, sandstones,<br />
conglomerates, dacite<br />
porphyry<br />
siltstones, sandstones<br />
and conglomerates<br />
sandstones, conglomerates,<br />
dacite lava flows and tuffs<br />
sandstones and<br />
conglomerates<br />
shales, conglomerates,<br />
basalt lavas and breccias,<br />
felsic lavas and granites<br />
shales, siltstones<br />
and sandstones<br />
Mesozoic Plutonic Rocks<br />
(6)<br />
schists, gneisses<br />
and porphyry<br />
not to scale<br />
Figure 2. Andrews et al., 2010<br />
Not to scale<br />
Figure 2. Schematic representation of stratigraphic relationships within the Nechako basin.<br />
Number of samples collected from each stratigraphic unit is given in parentheses.
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