the innermost tectonic unit of the Outer West Carpathians, forms the Harklowa promon- tory as the tectonic cover of the Silesian unit. Farther to the SE, between.
115 Veroff.
Zentralinst.
Physik
Erde,
Potsdam
(1979) 58
Q~~~~2~~~_!~_~g~_f2~~~~~~_2f_~g~_M~g~~_~~!~_!~_~h~_tl~!~2~~=~2~~~~Z~~_~~g!2~ ~Q~~~~_!~~~_Q~E~~g!~~~ FRANCISBA
SZ'D4AKOWSKA
and ANTONI
1)
K. TOKARSKI
Summary
I
live
olistostromes
from
the area of Harklowa--Kotaczyce
arranged
as an arc of
14..km in length are described;their s1zes are up to 6.5 olistolitbjs km2 .~" ~ :..~ __ .. __ ".~.They exhibit a polymict composition with the latter
being
!h~ genesis
concentrated
prevailingly
of the olistostromes
the Magura
nappe;
Olisthostrome
it took place
im Vorland
on the upper
is likely
to be related
at the end of, or after,
der Kagura-Einheit (auBere
im Gebiet
parts
fo) 000
~
m2,
of the olistostromes.
to the overthrusting
of
folding.
von Harklowa-Kolaczyce
Westkarpaten)
~usammenfassung
Aus dem Harklowa-Kolaczyce-rrebiet
fUnf
in Bbgenform
auf 14 km angeordnete r.
~"~~_~i~9Bie
sind polymikt zusammengesetzt mit bis 20 000 m2 groBen Olistholithen, auf den oberen Teil der Olisthostrome konzentriert sind. Wahrschein-
lich laBt
sich
beziehen.
Bie
die Bildung erfolgte
GrBBe max1mal
6,5 km2
beschrieben,
die besonders
deren
werden
Olisthostrome
der Olisthostrome
sm Ende
oder nach
auf die Uberschiebung
der Magura-Decke
der Faltung.
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PeSIlMe
I
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B Bepxaeti
QaCTR OJIHCTOCTPOMOB.BepOHTHO 06paSOBaHRe
OJIHCTOCTPOMOBCBHSaHO c ~a.n;BZrOMIMaryPCKOrO IIORPOBa.\ OH ~08BBK CKJIa,IJ;lIaTOCTHI4JIJI[IIOCJle ee SaBepmeHBJi.
Instytut
Geologiczny,
Geologicznych
Oddz.
PAN, Krak6w
Karpacki,
Krak6w;
Zespól
Pracowm.
B 3aKJl1)qJ1[TeJlDHyIl~y
Zakladu
Hauk
116 The olietostromes pathians
tectonic
as the tectonic
and Silesian
Another Harklowa
units,
was
was
the Harklowa
promontory;
olistostrome
(some
AlI
The
crops
part
1). There
unit.
out.
Farther
of the Outer
the Magura
Carpathians,
forms
West
nappe,
promontory
Car-
which
the Harklowa
to the SE, between
The Harklowa
proposed
is
promonthe Magura
(Fig. 2) consists
On the fo~eland
from
olietostrome, olistostrome.
S to HE.
14
2. the Skolyszyn
probably
south
t976 at
by a narrow
1.8
(some
the
appear
to north:
connected
km2)t 3.
neck
the Lip-
(some 6.5 km2); 5. the
olistostrome
probably
that
there
1963; SZYMAKOWSKA
are from
olistostrome
1.8 km2); 4. the Kluczowa
originally
forming
being the aame as that of the easte~ of the northernmost olietoatrome from
part
of the
part of the the Harklowa
km.
the olietoetromee microfossils
These
5 km2 in size),
ita material The distance
of the promontory
& SZYMAKOWSKA
(JASIONOWICZ
(some
(1976 at b), who thought
by SZYMAKOWSKA
(some 0.2 km2), the latter
olistostrome
youngest
unit
distribution
olistostrome
ia aome
(Fig. West
an olistostrome.
nica
promontory
in the Polish
of the Silesian
with
Kluczowa Kluczowa
region
of olistostromes
in bended
the Pagorzyna
occur
t956; WlCLAWIK 1969). In the in its northern faciee (KOZIKOWSKI promontory is of tectonic origin (e.g., SWIDZINSKI 1934).
interpretation
occurrences
Sowina
here
of the Outer
the Dukla
promontory
b), arranged
1.
unit cover
of the Magura seriee current opinion this
five
with
in the Harklowa-Kolaczyce
the innermost tory
dealt
were
depoeited
in their matrix
age of olistoliths
ranges
from
not
earlier
than
being
of thie
age
the Upper
Cretaceous
in the Lowermoet
Miocene,
the
1966, 1968, 1973).
(SZYMAKOWSKA
up to the Oligocene
(SZYMAKOW-
SKA 1966, 1968). In the described most the
Miocene)
drilled
immediately material The
sequence.
below below
series.
These
them.
thickneeses
the olistostromes
beda
there
out around
contain
of the olistostromea aouthern
borders.
pebblea
placea
it containa are
patches
are kno~n
They
of the olistoatromes
matrix
Cretaceous
crop
the Krosno
beds
form
(Oligocene
origin
and
elump
- Lower-
the uppermoat
the olistostromes
is of sedimentary
and 70 - 150 m for the Kluczowa
The matrix
The Krosno
rocks
The contact
overlie
(Fig. 4). sheeta
part
of
Zt3) and
(Figs.
The Krosno
of the Magura
beda seriee
3).
(Fig.
200 m from their etrome
the olistostromee
of the Silesian
eedimentary
were
area
of poorly
by finely
to Oligocene
microfossils
in their
aouthern
100 to
parts,
the Skolyszyn
oliato-
olis,os~rome.
conait9
contaminated
only
to 30 - 80 m for
amo'mt
of grey
cemented
cruahed
clayey
and
fine-grained
grey,
green
(SZY.MAKOWSKA
clayey-muddy
sand.
Some
and red ahalea
parts
ahales.
In
of the
containing
Upper
1966, 1968, 1973). 2
The aize 4). They
of the oliatolitha
comprise:
aandatones,
ranges marla
from
a few millimetres
and ahales
of the Magura
ahalea, limeatones (Jaslo shales), and cherta of the limestones (Kazanka limeatonea and Tylawa limestones) the
Sub-Sileeian
aeriea.
to some series,
20 000 m
(Figa.
aandstones,
2,
marla,
Sileaian seri~e, sandstones and of the Dukla aerieat and marls of
117 The shape great
hibiting they
of the olistoliths
majority
are irreguiar
is variable.
a ratherwell-ordere~orientation.
are flat-ly,ingi
The quantitative the bottom
part
Only
and sharp-edged.
in the northern
relations
of the olistostromes
mass. Upwards it becomes less gible. - AlI tbe olistostromes
matrix
rounded,
the
are alsolpresent,
parts
ex-
of the olistostromes
dip 40-600 to the south.
they
matrix
are well
of beds
In the southern
parts
between
few of them
Fra~ents
and olistoliths prevails
show
attaining
vertical
80%
changes.
of the whole
and less abundant, until atl the top it is almost are polymictic. They bear no traces of tectonie
In'
rock neglire-
working.
The sedimentary is supposed the Dukla
to be derived
unit
sentseem Silesian fold;
soutA
to be under
we infer
that
region
The
only
their
nappe.
exceptionally.
olistostromes irregular
from the regular
appears
that
Therefore,
are expressed
ridges
densely
built
unit
It is possible is derived marls
has
near
a~ pre-
of the
uno
in a transversal a complex
antieline
to be connected of tectonic
with
de-
pattern:
In the
(Fig. 2), while
the northward
reworking
the end of folding
or even
we suggest
their
that
of a transversal
in the recent
up by the Silesian
depression
These
aft er folding
nappe
occurrence
geomorphological
by landslides.
thru-
in the olistostromes
of the Magura
covered
areas
the Podzamcze-Liwocz
cleared
occur
depression
as we 11 as from
that part
from
is not
one,
The material
The two latter
in the foreland
by the presence
hills
to north.
graben.
the absence occurred
It seems
unit.
in the Osobnica-Biecz
by a tectonic
From
south
of the Magura
Sowina
(Fig. 2). This
deposition
area.
was predisposed
d1ssected
the smalI
of the olistostromes
in the described occur
overthrust.
depression
is formed
of the Magura
part
olistostrome
except unit
to be from
of the Silesian
of the Sub-Silesian
in the Silesian
The genesis
part
the Magura
it 1s a transversal part
seems
the northern
in the Kluczowa
the provenance
ies northern
sting
from
the olistostromes,
pression
direction
and the southern
material
only
AlI
transport
olistostromes
in the HankIowa
(tectonic
relief.
relief).
They
ara clearly
form
different
series.
References
JASIONOWICZ, J.r SZYMAKOWSKA, F.: Pr6ba wyja&nienia plat6w ma~skich • okolicy Jasla oraz plata pod6leskiego z okolicy genezy Wielopola Skrzynskiego (An attempt to explain the origin of Magura nappe outliers from the vicinity of Jaslo and of the Subsilesian nappe from the vicinity of WielopoleSkrzynskie). 363-385 Ann. Soc. Geol. Pol., Warszawa ;U (1963) 3,p. KOZIKOWSKI, H.t Geologia plaszczowiny magurskiej i jej okien tektonicznych niowy-zach6d od GOrlic (Geology of the Magura nappe and its tectonic the SW of IIorlice). Biul. Inst. Geol., Warszawa 11Q (1956), p. 47-91 KS1lZKIEWICZ, M.: Karpaty. Int Budowa geologiczna Warszawa: Wydawn. geol. 1972, 228 p.
Polski,
vol.
na poludwindows to
4: Tektonika,
part
3.
120
o
20
,
Fig.
3. Krosno after
40
I
beds
I
with
Magura
1 - Krosno amount
shales,
of quartz
pebbles
material
some
& SZYMAKOWSKA
JASIONOWICZ
2 - glauconite
sand and
of Magura
smalI
material,
7 m below
olistostrome
(Kluczowa)
(1963) sandstone,
3 -
Krosno
fragment s of Magura
5 - Magura
shales,
shales
shales,
6 - slump
with
large
4 - grains
sheet
and
ot Magura
shales
-------,
3m
Fig.
4. Contact
of Krosno
SZYMAKOWSKA
(1963)
1 - Krosno
shales,
beds
with
2 - matrix
olistostrome
(Kluczowa)
of the olistoBtrome,
after
3 -
JASIONOWICZ
olistolithB
&