Idaho semi-weekly world. [volume] (Idaho City, Idaho Territory) 1875-1908, 1879-08-15

WHCiC fiiiiC lido OSIu fCPitCNi III ifdihAf
ore through chemical agencies the ore
mass still retaining plain traces Of the orig
inal structure Of the shales. The mines
are all grouped within an area of fur or
five miles square, and are intimately asso-
Icated throughout with Tie eruptive bikes,
that have made prof, und geological
faults in every direction throughout the
district Here was great center Of local
plutonic action mat produced the assures,
and also gave the chemical activities that
filled them with ore. AS you go away
from the centerof disturbance the porphy
Try bikes disappear; the metamorpliorism
of the rocks becomes less strongly marked;
the ore deposits dwindle out to faint traces;
and finally disappear at all points beyond
the immediate influences OF the eruptivc
rocks.
tits illogical to say that .the forces which
produced the assures and elected the plu-
tonic rocks, also put put into action The
chemical forces which eliminated the ores
from profound depths" and deposited them
in the assures on thei lines OF escape from
their sourceg There we have (1sD thed;-
rections Of the mechanical movements on
the lines of disocation in their relation to
the center Of plutonic disturb nee; and
(2d) the chemical activities, induced by
the eruptive rocks, forming mineralized
gases and solutions that must escape to-
wards the surface on lines OF east resist
ance Careful observation extended over
wide areas shows that the lines of escape
of the gases and solutions, and consequent
ly the lines of deposit, are, as Il rule, coin
cident in direction with the movement Of
the walls of assures upon each other. OBJ
servations show that the centers Of mechan-
zeal force have also been the centers of
greatest chemical action. The os Hating
and conyulsive movements of the earth's
crust at these great centers of activity may
have continued during long periods OF
time, causing the walls of assures in the
disturbed districts to grind and score each
other in an approximately vertical dircc-
ton, until the crup i've rocks slowly cooled
and consolidated This shrinkage and
settling down by their gravity in many
cases allowed, or caused more or less hor-
izontal shifting of the walls, thus leaving
openings in the lines of movement for the
escape of the gases and solutions upward
where the conditions were more favorable
Tor redepositing their mineral contents
Thus the indication of the movements of
the walls became the easiest lines Of es-
cape for the mineralized vapors and solu-
tions, and was also the most direct line to
deep-seated center of action, both mechan-
ical and chemical
In the light of these facts, are my con-
illusions illogicalg Are my statements of
them surprising and unreasonable? The
facts at least are overwhelming in their
logic; and am disposed to stand by the
FACTS and their obvious logic; in defiance
Of all personal laws OF "Smidt," the text
books or the so-called "Clayton's law"
Notwithstanding the high authority Of any
critic, | must protest against the nonsense
OF formulating laws to suit the views of
any man. | am in 10 sense the discoverer
of any new law; have studied an inter
esting series of FACTS in mining geology
that have not been explained in the text
books, nor in the Engineering and Min
ing Journal" | have tried to show the
relation OF the facts to each other and
their harmony with Natures law, which
is the only absolute and final authority
j. E. CLAYTON