g~_f2~~~~~~_2f_~g~_M~g_!~_!

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.

OJIHCTOCTPOMHB qJop.n:aH.JJ;eMa1iYPCKOrO 3JleMeHTa paloHa XapKJlOBa.J.KOJlaQblQl!l(BHellIHRe 3aJIaJUIHe KapnaTbl)

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


mass. Upwards it becomes less gible. - AlI tbe olistostromes

matrix

rounded,

the

are alsolpresent,

parts

ex-


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


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

&