46 Process-Form Lab_ Karst
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School
Arizona State University *
*We aren’t endorsed by this school
Course
211
Subject
Geography
Date
Dec 6, 2023
Type
Pages
3
Uploaded by BaronGrasshopperPerson950
Question
1
1/1pts
What
is
this
karst
landform
(N
47.21181
W
121.94142),
how
did
it
form,
and
what
do
the
hatchered
contours
mean
(that
you
can
see
in
Acme
Mapper
topo
tap)?
This
doline
formed
through
limestone
dissolution,
and
the
hatchered
contours
tell
you
that
the
location
is
a
depression.
This
doline
formed
by
the
dissolution
of
granite
rock,
and
the
hatchered
contours
tell
you
that
the
location
is
a
depression.
This
depression
formed
when
the
limestone
roof
fell
into
an
underground
cavern,
and
this
is
what
the
hatchered
contours
mean.
Question
2
1/1pts
What
is
this
(N
34.64914
W
111.75221)
karst
landform,
how
did
it
form,
and
what
is
the
elevation
difference
between
the
water
in
this
landform
and
the
stream
immediately
to
the
east?
This
landform
is
a
blind
valley
formed
by
fluvial
processes
eroding
the
depressions,
and
the
river
to
the
east
is
about
10
meters
higher
than
the
lake
surface.
This
landform
is
a
collapse
doline
formed
by
the
dissolution
of
rock
(limestone)
in
a
cavern.
Then,
when
the
cavern
ceiling
collapsed
this
sinkhole
formed.
The
elevation
of
the
river
to
the
east
is
a
few
meters
lower
than
the
lake.
This
landform
is
a
sinkhole
formed
by
faulting
dropping
What
is
this
karst
landform
(N
37.94188
W
80.45261)
and
how
did
it
form?
Hint:
this
is
the
end
of
Culverson
Creek.
It
is
the
lowest
elevation
along
Culverson
Creek!
Really.
You
can
check
the
elevations
on
Acme
Mapper
topo
tab
or
Google
Earth.
Where
does
it
go
from
this
point?
This
interrupted
stream
formed
because
the
water
goes
down
a
sinkhole
into
an
underground
water
storage
system
built
by
the
surrounding
farms.
This
offset
stream
formed
when
a
fault
separated
the
upstream
portion
of
the
stream
from
its
downstream
segment.
This
blind
valley
formed
because
the
water
goes
down
into
an
underground
cave
system.
What
is
this
karst
landform
(N
37.81090
W
80.49637)
and
how
did
it
form?
Hint:
this
is
the
end
of
Milligan
Creek.
Where
does
it
go
from
this
point?
This
offset
stream
formed
when
a
fault
separated
the
upstream
portion
of
the
stream
from
its
dowsetrasms
canman
.
This
offset
stream
formed
when
a
fault
separated
the
upstream
portion
of
the
stream
from
its
downstream
segment..
This
dead-end
stream
was
built
during
the
civil
war
as
a
trap
for
the
union
army.
This
blind
valley
formed
because
the
water
goes
down
into
an
underground
cave
system.
V.
=4/3
=
r’
However,
this
feature
is
clearly
NOT
a
sphere.
it
is
approximated
by
being
a
half
sphere.
So
the
formulae
you
would
use
would
be
v=2/3*JT*
I
*
¥V
*
T
You
know
the
value
of
pi
(you
can use
3.14).
You
just
need
the
radius.
The
radius
is
the
depth
of
the
hole!
If
you
are
in
Google
Earth
you
simply
move
the
cursor
to
the
top
of
the
hole
on
the
side
and
read
the
elevation.
Then,
move
the
cursor
to
the
bottom
of
the
hole
and
read
the
elevation.
Just
subtract
them
(top
-
bottom).
Then,
round
the
elevation
difference
in
meters
to
the
NEAREST
10
(10,
20,
30,
or
40).
This
will
make
the
math
easiest.
The
volume
will
have
to
be
measured
in
cubic
meters,
obviously.
Since
this
is
a
multiple-choice
question,
you
only
have
to
get
close
in
terms
of
the
volume
calculation.
This
is
a
volcanic
maar
made
by
the
explosion
of
a
steam
eruption
with
a
volume
of
about
20,000
cubic
meters.
This
is
a
doline
made
by
the
collapse
of
limestone
into
a
cave
system
underneath.
Its
volume
is
about
5,000
to
22,000
cubic
meters
--
depending
on
the
version
of
Google
Earth
you
use.
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