i6 The American Geologist. '^"''■- ^^'^^• 
The two best localities for measurement, in eastern Xova 
Scotia, are from the Moose River antichne, at its bifurcation 
a mile west of Moose River mines, north to the contact with 
the Halifax formation; and from the more northerly 
of the two branches into which that axis breaks, five 
miles west of Fifteen Mile Stream gold district, north to the 
contact with the Halifax. The former gives 16,730 feet, the 
latter 17,670 feet as the exposed thickness of the Goldenville. 
Strike faults are extremely rare in the Meguma series, and 
small where found. The traverses made for the purpose of 
•estimating thickness were along lines giving numerous out- 
crops ; and no evidence whatever was found, which would war- 
rant belief in either folding or faulting along the lines meas- 
ured . 
Characteristics of sediments: l^sainiiiytes . — A few con- 
glomerates are to be found in this formation, but are most 
conveniently described later. Finer than these is the "whin," 
including sediments of all textures between conglomerates on 
one hand and slate on the other. These strata exhibit all de- 
grees of compactness and metamorphism, from somewhat fri- 
able sandstone to the most dense and highly metamorphosed 
quartzyte ; the latter being abundant and the former rare . As 
a rule they are heavily bedded, single strata reaching thirty 
to forty feet in thickness in some instances, without sign of 
stratification. On the other hand, some are but a fraction of 
an inch thick. The color is generally dark green when fresh, 
becoming brown through oxidation of sulphides, and finally 
bleaching by continued weathering to a yellowish or light 
greenish gray. Under a hand lens, one of the most noticeable 
features is the abundance of grains of black or dark smoky 
quartz in some of the coarser whins. 
The texture of these whins ranges from coarse grits, al- 
most conglomerates, to fine quartzytcs with some admixture 
of kaolin. Of the former, the thick whin belt at ^Nlt. Uniacke 
is a good example. Very considerable masses of quartzyte 
are so uniform as almost to prevent structural relations from 
being deciphered . Frequently a zone of more noticeably 
cleaved rock or an indistinct lamina of slate is all that can be 
relied upon. The lack of individuality in the arenaceous sedi- 
ments is so marked that there is nu (ii)portuuity for finding 
