legend for the geological map of south, south-west and...
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![Page 1: Legend for the geological map of South, South-West and ...data.geus.dk/greenland_portal/Legend_G100_SSW_A3.pdf · The geological map in scale 1 : 100 000 is an amalgamation of the](https://reader034.vdocuments.us/reader034/viewer/2022042218/5ec4a1c0dcf8ee48cf23aa7b/html5/thumbnails/1.jpg)
Legend for the geological map of South, South-West and southern West GreenlandScale 1 : 100 000
QUATERNARYALV Alluvium
Qundif Undifferentiated deposits, including moraine older than 4000BC
Q1 Neoglacial moraine younger than AD 1600Q5 Talus and alluvial conesQ6 Alluvial fans and deltasQ7 Fluvio-glacial deposits and terraceQ8 Marine deposits and terraceQ10 Prehistoric moraineQ11 Moraine younger than AD 1600 on Inland Ice
Q12 Wind-blown sandQ16 Beach sandQ20 Ice-dammed lake with periodic drainageQ21 Maximum extent of ice-dammed lakeRIVER RiverICE Ice and perennial snowICELAK Lake on Inland iceMESOZOICC Carbonatite
ai_fen Fenitisation associated with carbonatite, gabbro andleucogabbro
an_fen Fenitisation associated with carbonatite, leucogabbro andanorthosite
gi_fen Fenitisation associated with carbonatite, granitegn_fen Fenitisation associated with carbonatite, orthogneissP_fen Fenitisation associated with carbonatite, pegmatitedeltaM Dolerite dykeMESOPROTEROZOIC: Gardar, intrusive rocksg_G Graniteeps_G Alkali granitesig_G Syenitelam_G Augite syenite and pulaskitepsi_G Nepheline syenitemzsg_G Monzo- to syenogabbroome_G Ultramafic rocksalf_G AnorthositedeG_G Gabbroic dykes and sillssigP_G Paatusoq syeniteMESOPROTEROZOIC: Gardar, intrusive rocks: IlímaussaqIntrusionchK_G Agpaite, kakortokitechL_G Agpaite, lujavritechN_G Agpaite, naujaitechS_G Agpaite, sodalite foyaiteMESOPROTEROZOIC: Gardar, intrusive rocks: Klokken intrusionKl_G Klokken intrusionMESOPROTEROZOIC: Gardar, intrusive rocks: South QôroqCentresqi_G South Qôroq CentreMESOPROTEROZOIC: Gardar, intrusive rocks: Igaliko NephelineSyenite Complexla1_G Syenite (M1, I1)la2_G Syenite (SQ4, I4, EM, N)
ps1_G Nepheline syenite (NQ1, SQ1, NM1)ps2_G Nepheline syenite (M2, NQ2, SQ2, I2, NM2)ps3_G Nepheline syenite (M3, NQ3, SQ3, I3, Ø)ps4_G Nepheline syenite (M4, NQ4, T)ps5_G Nepheline syenite (M5, NQ5, SQ5, I5)ps6_G Nepheline syenite (I6, I7)MESOPROTEROZOIC: Gardar, intrusive rocks: Grønnedal - IkaComplexmu_G CarbonatiteMESOPROTEROZOIC: Gardar, intrusive rocks: Brown Dykes ofGardar ageBD_G Brown dykesMESOPROTEROZOIC: Gardar, intrusive rocks: Giant Dykes ofGardar ageGD_G Tugtutôq Giant Dykes (OGD and YGD)MESOPROTEROZOIC: Gardar, extrusive rocks: EriksfjordFormationbet_G Basalttau_G TrachyteMESOPROTEROZOIC: Gardar, sedimentary rocks: EriksfjordFormationq_G Sandstone, quartziteCgl_G ConglomeratePALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocksgb Granite, biotite-bearing, commonly porphyriticgx Granite, granodiorite and tonalitegs_K Granite, sensu strictogj Orthogneiss (Igutsaat fjord area)gar_K Gabbro, orthopyroxene-bearingapi_K Appinitic rocksaik Mafic metaintrusive rockshbd_K Hornblenditeper_K Ultramafic intrusivesPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Rapakivi Suiter_R Rapakivi graniterb_R Biotite granitePALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Julianehåb Batholithg_K Granite, sensu lato, early Ketilidianhg1_K Granite, sensu lato, commonly porphyriticbg_K Biotite granitehg2_K Hornblende granitelg_K Leucogranitegapl_K Aplite graniteag_K Granite, albitised rocksmgsg_K Monzogranite and syenogranitemz_K Monzonitegd_K Granodiorite, sensu latodi_K Diorite, sensu latodiga_K Diorite and gabbrodii_K Diorite, with inclusionsdt_K Diorite and tonalite
gGG_K Granodiorite, gneissosegn_K Mainly granodioritic, gneissic domainsqgn_K Siliceous gneiss, often appliticrest_K Migmatite with abundant dark phasesPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Granite derived from melting ofmetasedimentary rockss2_K Granite, heterogeneous, garnet- and biotite-richPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Stendalen Gabbro Complexga_SG Stendalen Layered Gabbro Complexlga_SG Leucogabbro of the Stendalen Layered Gabbro ComplexPALAEOPROTEROZOIC: Ketilidian Orogen, metasedimentary andmetavolcanic rocksrh_K Acid metavolcanicsfv_K Felsic volcanicsaek Mafic metavolcanic rocksa_K Amphibolite, undifferentiatedmk Calcareous and dolomitic siltstone and shaleck Carbonate, mainly dolomitema_K Marly metasedimentsfk Greywackesp_K Semipelitep_K Pelite and semipelite, variably migmatised, locally graphiticrs_K Rusty weathered semipelitic horizon (± graphite)pk Pelite and pelitic shaleqsk Pelitic schist, black, with dolomite and quartzitedsk Shale and schist, dark pyriticps_K Psammite, arkosic, variably migmatisedpsud_K Undifferentiated psammite and semipelite
stq_K Sandstone, including chert and quartzite, locallyconglomeratic
sms_K Siliceous metasediments, undifferentiatedqs_cgl Sandstone, with conglomerateCgl2_K Conglomerate, with gritty quartzitic-greywacke matrixCgl1_K Conglomerate, with hornblendic matrixCgl_K Conglomeratic horizonsvs_K Mixed metasedimentary and metavolcanic rocksqv_K Clastic metasedimentary rocksgw_K Metagreywacke, metasiltstone and metamudstoneqs_K Metasandstone, and local conglomeratems_K Mica schistpgn_K Gneiss, pelitic to semipeliticggw_K Granite (greywacke)qs_grn Granite (sandstone)PALAEOPROTEROZOICdeltaP Dolerite dykeMESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocksgi Granite, undifferentiated (sensu lato)gi_px Granite, undifferentiated (sensu lato), orthopyroxene-bearingP Pegmatite, undifferentiated
Qgi Qôrqut granite complex (leucogranite, grey biotite graniteand composite granite)
Mgi Marraq granite
Tgi Taserssuatsiait graniteIdgi Ilivertalik tonalite, diorite and gabbro
Igi Ilivertalik granite, dominantly K-feldspar augen granite,variably deformed, usually orthopyroxene-bearing
Igi_px Ilivertalik granite, pyroxene-bearingNgi Nukagpiarssuaq graniteqgn Siliceous gneissgn Orthogneiss, mainly tonalitic to granodioritic
gn_px Orthogneiss, undifferentiated, mainly tonalitic,orthopyroxene-bearing
ga Orthogneiss, with gabbro-anorthositic enclavesd Diorite and tonalite, undifferentiatedd_net Diorite and tonalite, undifferentiated, with net-veins of gneissan Leucogabbro and anorthositeai Gabbro and leucogabbroub Ultramafic rocksQai Qáqatsiaq dykea Amphibolite, undifferentiated, includes mafic granulitea_net Amphibolite, undifferentiated, with net-veins of gneissa_px Amphibolite, undifferentiated, orthopyroxene-bearingae Amphibolite of extrusive origin, includes mafic granulite
ms Mica schist and gneiss, undifferentiated, mainly biotite schist± garnet, cordierite or silimanite
MESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocks: Fiskenæsset ComplexFdelta Fiskenæsset Complex upper gabbro unit
Fd_net Fiskenæsset Complex upper gabbro unit with net-veins ofgneiss
Fgamma Fiskenæsset Complex anorthosite and upper leucogabbrounits
Fg_net Fiskenæsset Complex anorthosite and upper leucogabbrounits with net-veins of gneiss
Fbeta Fiskenæsset Complex middle gabbro and lowerleucogabbro units
Fb_net Fiskenæsset Complex middle gabbro and lowerleucogabbro units with net-veins of gneiss
Falfa Fiskenæsset Complex ultramafic and lower gabbro units
Fa_net Fiskenæsset Complex ultramafic and lower gabbro unitswith net-veins of gneiss
MESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocks: Tartoq GroupTgn Tartoq Group quartz diorite gneissvs Tartoq Group, mixed volcanic and sedimentary rocks
qst Grey siliceous schist, locally talc- and mica-bearingquartzites
EOARCHAEAN TO PALAEOARCHAEAN: Igneous and metamorphicrocksAgn Tonalitic and granodioritic gneiss (formerly Amîtsoq gneiss)At Tonalitic gneiss (formerly Amîtsoq gneiss)
Aa_in Inclusions of amphibolite in tonalitic and granodioritic gneiss(formerly Amîtsoq gneiss)
Ams_in Inclusions of mafic amphibolite and ultramafic rocks intonalitic and granodioritic gneiss (formerly Amîtsoq gneiss)
Agi Granitic and ferrodioritic gneiss, with K-feldspar augen(formerly Amîtsoq gneiss)
Ams Supracrustal rocks, undifferentiated (formerly Akiliametasedimentary rocks)
Aa Amphibolite, including metagabbro (formerly Akiliaamphibolite)
Aub Ultramafic rocks (formerly Akilia ultramafic rocks)d_ai Ameralik amphibolitic dyke swarms
del_M Dolerite dyke of Mesozoic agedeltaP Dolerite dykedelta Dolerite dyke, undifferentiateda Amphibolite dykea_inf Amphibolite dyke, inferredap_SS Appinite dyke, mainly diorite, locally net-veinedchi Kimberlite dykeomega Lamprophyre dyke
sigma Trachyte and microsyenite dykes, both saturated andundersaturated
h hPEGM Pegmatiteh hMIGM Migmatization
BandBi Banded biotiticBandBd Banded biotitic, with streaksBandHo Banded hornblendicBandHb Banded hornblendic, with streaksINC_a Inclusions of amphiboliteINC_an Inclusions of anorthosite and leucogabbroINC_ch Inclusions of lenticular chromite
INC_cs Inclusions of calc-silicatesINC_ub Inclusions of ultramafic rocksINC_ms Inclusions of metasedimentsBDest BoundaryBDinf Boundary, inferredBDtrs Boundary, transitionalshz Trend of schistosity or lithological layering
! !FLTest FaultFLTinf Fault, inferredHsgZSS High-strain gneiss zone
( (THRest ThrustTHRinf Thrust, inferred
D DTRAX1 Trace of axial surface, synformW WTRAX2 Trace of axial surface, antiform
F F FUNCONF UnconformityJ J J Jaugen Augen texture
crysts Feldspar megacrystic! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !Tuff TuffM MPOR Porphyritic texture
J Augen texturep Pillow structure= Fold axis, measured> Fold axis, measuredD Fold axis, constructedE Fold axis, constructedc Strike and dipb Vertical dip` Horisontal dipO FoliationP Vertical foliation? Lineation
The geological map in scale 1 : 100 000 is an amalgamation of the harmonised, seamless map of southern West and South-West Greenland between 61° 30´ N and 64° N (Keulen et al. 2010) and additional digitised and harmonised maps of South Greenland.The maps of South Greenland include the following seven published GEUS map sheets in scale 1 : 100 000:Ivigtut 61 V. 1 Syd, Nunarssuit 60 V. 1 Nord, Julianehåb 60 V. 2 Nord, Nassarssuaq 61 V. 3 Syd, Søndre Sermilik 60 V. 3 Nord, Nanortalik 60 V. 1 Syd, and Lindenow Fjord 60 Ø. 1 Nord.In the areas of South Greenland with no 1 : 100 000 map coverage the 1 : 500 000 scale map sheet Sheet 1, Sydgrønland, 2'nd edition was used.Current edition finished February 2019. Geological Survey of Denmark and Greenland (GEUS), Danish Ministry of Energy, Utilities and Climate.www.geus.dk
![Page 2: Legend for the geological map of South, South-West and ...data.geus.dk/greenland_portal/Legend_G100_SSW_A3.pdf · The geological map in scale 1 : 100 000 is an amalgamation of the](https://reader034.vdocuments.us/reader034/viewer/2022042218/5ec4a1c0dcf8ee48cf23aa7b/html5/thumbnails/2.jpg)
Legend for the geological map of South, South-West and southern West GreenlandScale 1 : 100 000
QUATERNARYALV Alluvium
Qundif Undifferentiated deposits, including moraine older than 4000BC
Q1 Neoglacial moraine younger than AD 1600Q5 Talus and alluvial conesQ6 Alluvial fans and deltasQ7 Fluvio-glacial deposits and terraceQ8 Marine deposits and terraceQ10 Prehistoric moraineQ11 Moraine younger than AD 1600 on Inland Ice
Q12 Wind-blown sandQ16 Beach sandQ20 Ice-dammed lake with periodic drainageQ21 Maximum extent of ice-dammed lakeRIVER RiverICE Ice and perennial snowICELAK Lake on Inland iceMESOZOICC Carbonatite
ai_fen Fenitisation associated with carbonatite, gabbro andleucogabbro
an_fen Fenitisation associated with carbonatite, leucogabbro andanorthosite
gi_fen Fenitisation associated with carbonatite, granitegn_fen Fenitisation associated with carbonatite, orthogneissP_fen Fenitisation associated with carbonatite, pegmatitedeltaM Dolerite dykeMESOPROTEROZOIC: Gardar, intrusive rocksg_G Graniteeps_G Alkali granitesig_G Syenitelam_G Augite syenite and pulaskitepsi_G Nepheline syenitemzsg_G Monzo- to syenogabbroome_G Ultramafic rocksalf_G AnorthositedeG_G Gabbroic dykes and sillssigP_G Paatusoq syeniteMESOPROTEROZOIC: Gardar, intrusive rocks: IlímaussaqIntrusionchK_G Agpaite, kakortokitechL_G Agpaite, lujavritechN_G Agpaite, naujaitechS_G Agpaite, sodalite foyaiteMESOPROTEROZOIC: Gardar, intrusive rocks: Klokken intrusionKl_G Klokken intrusionMESOPROTEROZOIC: Gardar, intrusive rocks: South QôroqCentresqi_G South Qôroq CentreMESOPROTEROZOIC: Gardar, intrusive rocks: Igaliko NephelineSyenite Complexla1_G Syenite (M1, I1)la2_G Syenite (SQ4, I4, EM, N)
ps1_G Nepheline syenite (NQ1, SQ1, NM1)ps2_G Nepheline syenite (M2, NQ2, SQ2, I2, NM2)ps3_G Nepheline syenite (M3, NQ3, SQ3, I3, Ø)ps4_G Nepheline syenite (M4, NQ4, T)ps5_G Nepheline syenite (M5, NQ5, SQ5, I5)ps6_G Nepheline syenite (I6, I7)MESOPROTEROZOIC: Gardar, intrusive rocks: Grønnedal - IkaComplexmu_G CarbonatiteMESOPROTEROZOIC: Gardar, intrusive rocks: Brown Dykes ofGardar ageBD_G Brown dykesMESOPROTEROZOIC: Gardar, intrusive rocks: Giant Dykes ofGardar ageGD_G Tugtutôq Giant Dykes (OGD and YGD)MESOPROTEROZOIC: Gardar, extrusive rocks: EriksfjordFormationbet_G Basalttau_G TrachyteMESOPROTEROZOIC: Gardar, sedimentary rocks: EriksfjordFormationq_G Sandstone, quartziteCgl_G ConglomeratePALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocksgb Granite, biotite-bearing, commonly porphyriticgx Granite, granodiorite and tonalitegs_K Granite, sensu strictogj Orthogneiss (Igutsaat fjord area)gar_K Gabbro, orthopyroxene-bearingapi_K Appinitic rocksaik Mafic metaintrusive rockshbd_K Hornblenditeper_K Ultramafic intrusivesPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Rapakivi Suiter_R Rapakivi graniterb_R Biotite granitePALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Julianehåb Batholithg_K Granite, sensu lato, early Ketilidianhg1_K Granite, sensu lato, commonly porphyriticbg_K Biotite granitehg2_K Hornblende granitelg_K Leucogranitegapl_K Aplite graniteag_K Granite, albitised rocksmgsg_K Monzogranite and syenogranitemz_K Monzonitegd_K Granodiorite, sensu latodi_K Diorite, sensu latodiga_K Diorite and gabbrodii_K Diorite, with inclusionsdt_K Diorite and tonalite
gGG_K Granodiorite, gneissosegn_K Mainly granodioritic, gneissic domainsqgn_K Siliceous gneiss, often appliticrest_K Migmatite with abundant dark phasesPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Granite derived from melting ofmetasedimentary rockss2_K Granite, heterogeneous, garnet- and biotite-richPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Stendalen Gabbro Complexga_SG Stendalen Layered Gabbro Complexlga_SG Leucogabbro of the Stendalen Layered Gabbro ComplexPALAEOPROTEROZOIC: Ketilidian Orogen, metasedimentary andmetavolcanic rocksrh_K Acid metavolcanicsfv_K Felsic volcanicsaek Mafic metavolcanic rocksa_K Amphibolite, undifferentiatedmk Calcareous and dolomitic siltstone and shaleck Carbonate, mainly dolomitema_K Marly metasedimentsfk Greywackesp_K Semipelitep_K Pelite and semipelite, variably migmatised, locally graphiticrs_K Rusty weathered semipelitic horizon (± graphite)pk Pelite and pelitic shaleqsk Pelitic schist, black, with dolomite and quartzitedsk Shale and schist, dark pyriticps_K Psammite, arkosic, variably migmatisedpsud_K Undifferentiated psammite and semipelite
stq_K Sandstone, including chert and quartzite, locallyconglomeratic
sms_K Siliceous metasediments, undifferentiatedqs_cgl Sandstone, with conglomerateCgl2_K Conglomerate, with gritty quartzitic-greywacke matrixCgl1_K Conglomerate, with hornblendic matrixCgl_K Conglomeratic horizonsvs_K Mixed metasedimentary and metavolcanic rocksqv_K Clastic metasedimentary rocksgw_K Metagreywacke, metasiltstone and metamudstoneqs_K Metasandstone, and local conglomeratems_K Mica schistpgn_K Gneiss, pelitic to semipeliticggw_K Granite (greywacke)qs_grn Granite (sandstone)PALAEOPROTEROZOICdeltaP Dolerite dykeMESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocksgi Granite, undifferentiated (sensu lato)gi_px Granite, undifferentiated (sensu lato), orthopyroxene-bearingP Pegmatite, undifferentiated
Qgi Qôrqut granite complex (leucogranite, grey biotite graniteand composite granite)
Mgi Marraq granite
Tgi Taserssuatsiait graniteIdgi Ilivertalik tonalite, diorite and gabbro
Igi Ilivertalik granite, dominantly K-feldspar augen granite,variably deformed, usually orthopyroxene-bearing
Igi_px Ilivertalik granite, pyroxene-bearingNgi Nukagpiarssuaq graniteqgn Siliceous gneissgn Orthogneiss, mainly tonalitic to granodioritic
gn_px Orthogneiss, undifferentiated, mainly tonalitic,orthopyroxene-bearing
ga Orthogneiss, with gabbro-anorthositic enclavesd Diorite and tonalite, undifferentiatedd_net Diorite and tonalite, undifferentiated, with net-veins of gneissan Leucogabbro and anorthositeai Gabbro and leucogabbroub Ultramafic rocksQai Qáqatsiaq dykea Amphibolite, undifferentiated, includes mafic granulitea_net Amphibolite, undifferentiated, with net-veins of gneissa_px Amphibolite, undifferentiated, orthopyroxene-bearingae Amphibolite of extrusive origin, includes mafic granulite
ms Mica schist and gneiss, undifferentiated, mainly biotite schist± garnet, cordierite or silimanite
MESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocks: Fiskenæsset ComplexFdelta Fiskenæsset Complex upper gabbro unit
Fd_net Fiskenæsset Complex upper gabbro unit with net-veins ofgneiss
Fgamma Fiskenæsset Complex anorthosite and upper leucogabbrounits
Fg_net Fiskenæsset Complex anorthosite and upper leucogabbrounits with net-veins of gneiss
Fbeta Fiskenæsset Complex middle gabbro and lowerleucogabbro units
Fb_net Fiskenæsset Complex middle gabbro and lowerleucogabbro units with net-veins of gneiss
Falfa Fiskenæsset Complex ultramafic and lower gabbro units
Fa_net Fiskenæsset Complex ultramafic and lower gabbro unitswith net-veins of gneiss
MESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocks: Tartoq GroupTgn Tartoq Group quartz diorite gneissvs Tartoq Group, mixed volcanic and sedimentary rocks
qst Grey siliceous schist, locally talc- and mica-bearingquartzites
EOARCHAEAN TO PALAEOARCHAEAN: Igneous and metamorphicrocksAgn Tonalitic and granodioritic gneiss (formerly Amîtsoq gneiss)At Tonalitic gneiss (formerly Amîtsoq gneiss)
Aa_in Inclusions of amphibolite in tonalitic and granodioritic gneiss(formerly Amîtsoq gneiss)
Ams_in Inclusions of mafic amphibolite and ultramafic rocks intonalitic and granodioritic gneiss (formerly Amîtsoq gneiss)
Agi Granitic and ferrodioritic gneiss, with K-feldspar augen(formerly Amîtsoq gneiss)
Ams Supracrustal rocks, undifferentiated (formerly Akiliametasedimentary rocks)
Aa Amphibolite, including metagabbro (formerly Akiliaamphibolite)
Aub Ultramafic rocks (formerly Akilia ultramafic rocks)d_ai Ameralik amphibolitic dyke swarms
del_M Dolerite dyke of Mesozoic agedeltaP Dolerite dykedelta Dolerite dyke, undifferentiateda Amphibolite dykea_inf Amphibolite dyke, inferredap_SS Appinite dyke, mainly diorite, locally net-veinedchi Kimberlite dykeomega Lamprophyre dyke
sigma Trachyte and microsyenite dykes, both saturated andundersaturated
h hPEGM Pegmatiteh hMIGM Migmatization
BandBi Banded biotiticBandBd Banded biotitic, with streaksBandHo Banded hornblendicBandHb Banded hornblendic, with streaksINC_a Inclusions of amphiboliteINC_an Inclusions of anorthosite and leucogabbroINC_ch Inclusions of lenticular chromite
INC_cs Inclusions of calc-silicatesINC_ub Inclusions of ultramafic rocksINC_ms Inclusions of metasedimentsBDest BoundaryBDinf Boundary, inferredBDtrs Boundary, transitionalshz Trend of schistosity or lithological layering
! !FLTest FaultFLTinf Fault, inferredHsgZSS High-strain gneiss zone
( (THRest ThrustTHRinf Thrust, inferred
D DTRAX1 Trace of axial surface, synformW WTRAX2 Trace of axial surface, antiform
F F FUNCONF UnconformityJ J J Jaugen Augen texture
crysts Feldspar megacrystic! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !Tuff TuffM MPOR Porphyritic texture
J Augen texturep Pillow structure= Fold axis, measured> Fold axis, measuredD Fold axis, constructedE Fold axis, constructedc Strike and dipb Vertical dip` Horisontal dipO FoliationP Vertical foliation? Lineation
The geological map in scale 1 : 100 000 is an amalgamation of the harmonised, seamless map of southern West and South-West Greenland between 61° 30´ N and 64° N (Keulen et al. 2010) and additional digitised and harmonised maps of South Greenland.The maps of South Greenland include the following seven published GEUS map sheets in scale 1 : 100 000:Ivigtut 61 V. 1 Syd, Nunarssuit 60 V. 1 Nord, Julianehåb 60 V. 2 Nord, Nassarssuaq 61 V. 3 Syd, Søndre Sermilik 60 V. 3 Nord, Nanortalik 60 V. 1 Syd, and Lindenow Fjord 60 Ø. 1 Nord.In the areas of South Greenland with no 1 : 100 000 map coverage the 1 : 500 000 scale map sheet Sheet 1, Sydgrønland, 2'nd edition was used.Current edition finished February 2019. Geological Survey of Denmark and Greenland (GEUS), Danish Ministry of Energy, Utilities and Climate.www.geus.dk
![Page 3: Legend for the geological map of South, South-West and ...data.geus.dk/greenland_portal/Legend_G100_SSW_A3.pdf · The geological map in scale 1 : 100 000 is an amalgamation of the](https://reader034.vdocuments.us/reader034/viewer/2022042218/5ec4a1c0dcf8ee48cf23aa7b/html5/thumbnails/3.jpg)
Legend for the geological map of South, South-West and southern West GreenlandScale 1 : 100 000
QUATERNARYALV Alluvium
Qundif Undifferentiated deposits, including moraine older than 4000BC
Q1 Neoglacial moraine younger than AD 1600Q5 Talus and alluvial conesQ6 Alluvial fans and deltasQ7 Fluvio-glacial deposits and terraceQ8 Marine deposits and terraceQ10 Prehistoric moraineQ11 Moraine younger than AD 1600 on Inland Ice
Q12 Wind-blown sandQ16 Beach sandQ20 Ice-dammed lake with periodic drainageQ21 Maximum extent of ice-dammed lakeRIVER RiverICE Ice and perennial snowICELAK Lake on Inland iceMESOZOICC Carbonatite
ai_fen Fenitisation associated with carbonatite, gabbro andleucogabbro
an_fen Fenitisation associated with carbonatite, leucogabbro andanorthosite
gi_fen Fenitisation associated with carbonatite, granitegn_fen Fenitisation associated with carbonatite, orthogneissP_fen Fenitisation associated with carbonatite, pegmatitedeltaM Dolerite dykeMESOPROTEROZOIC: Gardar, intrusive rocksg_G Graniteeps_G Alkali granitesig_G Syenitelam_G Augite syenite and pulaskitepsi_G Nepheline syenitemzsg_G Monzo- to syenogabbroome_G Ultramafic rocksalf_G AnorthositedeG_G Gabbroic dykes and sillssigP_G Paatusoq syeniteMESOPROTEROZOIC: Gardar, intrusive rocks: IlímaussaqIntrusionchK_G Agpaite, kakortokitechL_G Agpaite, lujavritechN_G Agpaite, naujaitechS_G Agpaite, sodalite foyaiteMESOPROTEROZOIC: Gardar, intrusive rocks: Klokken intrusionKl_G Klokken intrusionMESOPROTEROZOIC: Gardar, intrusive rocks: South QôroqCentresqi_G South Qôroq CentreMESOPROTEROZOIC: Gardar, intrusive rocks: Igaliko NephelineSyenite Complexla1_G Syenite (M1, I1)la2_G Syenite (SQ4, I4, EM, N)
ps1_G Nepheline syenite (NQ1, SQ1, NM1)ps2_G Nepheline syenite (M2, NQ2, SQ2, I2, NM2)ps3_G Nepheline syenite (M3, NQ3, SQ3, I3, Ø)ps4_G Nepheline syenite (M4, NQ4, T)ps5_G Nepheline syenite (M5, NQ5, SQ5, I5)ps6_G Nepheline syenite (I6, I7)MESOPROTEROZOIC: Gardar, intrusive rocks: Grønnedal - IkaComplexmu_G CarbonatiteMESOPROTEROZOIC: Gardar, intrusive rocks: Brown Dykes ofGardar ageBD_G Brown dykesMESOPROTEROZOIC: Gardar, intrusive rocks: Giant Dykes ofGardar ageGD_G Tugtutôq Giant Dykes (OGD and YGD)MESOPROTEROZOIC: Gardar, extrusive rocks: EriksfjordFormationbet_G Basalttau_G TrachyteMESOPROTEROZOIC: Gardar, sedimentary rocks: EriksfjordFormationq_G Sandstone, quartziteCgl_G ConglomeratePALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocksgb Granite, biotite-bearing, commonly porphyriticgx Granite, granodiorite and tonalitegs_K Granite, sensu strictogj Orthogneiss (Igutsaat fjord area)gar_K Gabbro, orthopyroxene-bearingapi_K Appinitic rocksaik Mafic metaintrusive rockshbd_K Hornblenditeper_K Ultramafic intrusivesPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Rapakivi Suiter_R Rapakivi graniterb_R Biotite granitePALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Julianehåb Batholithg_K Granite, sensu lato, early Ketilidianhg1_K Granite, sensu lato, commonly porphyriticbg_K Biotite granitehg2_K Hornblende granitelg_K Leucogranitegapl_K Aplite graniteag_K Granite, albitised rocksmgsg_K Monzogranite and syenogranitemz_K Monzonitegd_K Granodiorite, sensu latodi_K Diorite, sensu latodiga_K Diorite and gabbrodii_K Diorite, with inclusionsdt_K Diorite and tonalite
gGG_K Granodiorite, gneissosegn_K Mainly granodioritic, gneissic domainsqgn_K Siliceous gneiss, often appliticrest_K Migmatite with abundant dark phasesPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Granite derived from melting ofmetasedimentary rockss2_K Granite, heterogeneous, garnet- and biotite-richPALAEOPROTEROZOIC: Ketilidian Orogen, syn- and late-tectonicintrusive igneous rocks: Stendalen Gabbro Complexga_SG Stendalen Layered Gabbro Complexlga_SG Leucogabbro of the Stendalen Layered Gabbro ComplexPALAEOPROTEROZOIC: Ketilidian Orogen, metasedimentary andmetavolcanic rocksrh_K Acid metavolcanicsfv_K Felsic volcanicsaek Mafic metavolcanic rocksa_K Amphibolite, undifferentiatedmk Calcareous and dolomitic siltstone and shaleck Carbonate, mainly dolomitema_K Marly metasedimentsfk Greywackesp_K Semipelitep_K Pelite and semipelite, variably migmatised, locally graphiticrs_K Rusty weathered semipelitic horizon (± graphite)pk Pelite and pelitic shaleqsk Pelitic schist, black, with dolomite and quartzitedsk Shale and schist, dark pyriticps_K Psammite, arkosic, variably migmatisedpsud_K Undifferentiated psammite and semipelite
stq_K Sandstone, including chert and quartzite, locallyconglomeratic
sms_K Siliceous metasediments, undifferentiatedqs_cgl Sandstone, with conglomerateCgl2_K Conglomerate, with gritty quartzitic-greywacke matrixCgl1_K Conglomerate, with hornblendic matrixCgl_K Conglomeratic horizonsvs_K Mixed metasedimentary and metavolcanic rocksqv_K Clastic metasedimentary rocksgw_K Metagreywacke, metasiltstone and metamudstoneqs_K Metasandstone, and local conglomeratems_K Mica schistpgn_K Gneiss, pelitic to semipeliticggw_K Granite (greywacke)qs_grn Granite (sandstone)PALAEOPROTEROZOICdeltaP Dolerite dykeMESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocksgi Granite, undifferentiated (sensu lato)gi_px Granite, undifferentiated (sensu lato), orthopyroxene-bearingP Pegmatite, undifferentiated
Qgi Qôrqut granite complex (leucogranite, grey biotite graniteand composite granite)
Mgi Marraq granite
Tgi Taserssuatsiait graniteIdgi Ilivertalik tonalite, diorite and gabbro
Igi Ilivertalik granite, dominantly K-feldspar augen granite,variably deformed, usually orthopyroxene-bearing
Igi_px Ilivertalik granite, pyroxene-bearingNgi Nukagpiarssuaq graniteqgn Siliceous gneissgn Orthogneiss, mainly tonalitic to granodioritic
gn_px Orthogneiss, undifferentiated, mainly tonalitic,orthopyroxene-bearing
ga Orthogneiss, with gabbro-anorthositic enclavesd Diorite and tonalite, undifferentiatedd_net Diorite and tonalite, undifferentiated, with net-veins of gneissan Leucogabbro and anorthositeai Gabbro and leucogabbroub Ultramafic rocksQai Qáqatsiaq dykea Amphibolite, undifferentiated, includes mafic granulitea_net Amphibolite, undifferentiated, with net-veins of gneissa_px Amphibolite, undifferentiated, orthopyroxene-bearingae Amphibolite of extrusive origin, includes mafic granulite
ms Mica schist and gneiss, undifferentiated, mainly biotite schist± garnet, cordierite or silimanite
MESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocks: Fiskenæsset ComplexFdelta Fiskenæsset Complex upper gabbro unit
Fd_net Fiskenæsset Complex upper gabbro unit with net-veins ofgneiss
Fgamma Fiskenæsset Complex anorthosite and upper leucogabbrounits
Fg_net Fiskenæsset Complex anorthosite and upper leucogabbrounits with net-veins of gneiss
Fbeta Fiskenæsset Complex middle gabbro and lowerleucogabbro units
Fb_net Fiskenæsset Complex middle gabbro and lowerleucogabbro units with net-veins of gneiss
Falfa Fiskenæsset Complex ultramafic and lower gabbro units
Fa_net Fiskenæsset Complex ultramafic and lower gabbro unitswith net-veins of gneiss
MESOARCHAEAN TO NEOARCHAEAN: Igneous and metamorphicrocks: Tartoq GroupTgn Tartoq Group quartz diorite gneissvs Tartoq Group, mixed volcanic and sedimentary rocks
qst Grey siliceous schist, locally talc- and mica-bearingquartzites
EOARCHAEAN TO PALAEOARCHAEAN: Igneous and metamorphicrocksAgn Tonalitic and granodioritic gneiss (formerly Amîtsoq gneiss)At Tonalitic gneiss (formerly Amîtsoq gneiss)
Aa_in Inclusions of amphibolite in tonalitic and granodioritic gneiss(formerly Amîtsoq gneiss)
Ams_in Inclusions of mafic amphibolite and ultramafic rocks intonalitic and granodioritic gneiss (formerly Amîtsoq gneiss)
Agi Granitic and ferrodioritic gneiss, with K-feldspar augen(formerly Amîtsoq gneiss)
Ams Supracrustal rocks, undifferentiated (formerly Akiliametasedimentary rocks)
Aa Amphibolite, including metagabbro (formerly Akiliaamphibolite)
Aub Ultramafic rocks (formerly Akilia ultramafic rocks)d_ai Ameralik amphibolitic dyke swarms
del_M Dolerite dyke of Mesozoic agedeltaP Dolerite dykedelta Dolerite dyke, undifferentiateda Amphibolite dykea_inf Amphibolite dyke, inferredap_SS Appinite dyke, mainly diorite, locally net-veinedchi Kimberlite dykeomega Lamprophyre dyke
sigma Trachyte and microsyenite dykes, both saturated andundersaturated
h hPEGM Pegmatiteh hMIGM Migmatization
BandBi Banded biotiticBandBd Banded biotitic, with streaksBandHo Banded hornblendicBandHb Banded hornblendic, with streaksINC_a Inclusions of amphiboliteINC_an Inclusions of anorthosite and leucogabbroINC_ch Inclusions of lenticular chromite
INC_cs Inclusions of calc-silicatesINC_ub Inclusions of ultramafic rocksINC_ms Inclusions of metasedimentsBDest BoundaryBDinf Boundary, inferredBDtrs Boundary, transitionalshz Trend of schistosity or lithological layering
! !FLTest FaultFLTinf Fault, inferredHsgZSS High-strain gneiss zone
( (THRest ThrustTHRinf Thrust, inferred
D DTRAX1 Trace of axial surface, synformW WTRAX2 Trace of axial surface, antiform
F F FUNCONF UnconformityJ J J Jaugen Augen texture
crysts Feldspar megacrystic! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !Tuff TuffM MPOR Porphyritic texture
J Augen texturep Pillow structure= Fold axis, measured> Fold axis, measuredD Fold axis, constructedE Fold axis, constructedc Strike and dipb Vertical dip` Horisontal dipO FoliationP Vertical foliation? Lineation
The geological map in scale 1 : 100 000 is an amalgamation of the harmonised, seamless map of southern West and South-West Greenland between 61° 30´ N and 64° N (Keulen et al. 2010) and additional digitised and harmonised maps of South Greenland.The maps of South Greenland include the following seven published GEUS map sheets in scale 1 : 100 000:Ivigtut 61 V. 1 Syd, Nunarssuit 60 V. 1 Nord, Julianehåb 60 V. 2 Nord, Nassarssuaq 61 V. 3 Syd, Søndre Sermilik 60 V. 3 Nord, Nanortalik 60 V. 1 Syd, and Lindenow Fjord 60 Ø. 1 Nord.In the areas of South Greenland with no 1 : 100 000 map coverage the 1 : 500 000 scale map sheet Sheet 1, Sydgrønland, 2'nd edition was used.Current edition finished February 2019. Geological Survey of Denmark and Greenland (GEUS), Danish Ministry of Energy, Utilities and Climate.www.geus.dk