Geological map of Lower Saxony, 1 : 50 000 - Base map
(GK50)
Lower Saxony's geology is visualised in the 1 : 50 000 geological map of Lower Saxony - base map (GK50) in a homogeneous, scientifically uniform format using up-to-date nomenclature.
The map provides information on the distribution, consistence and sequence of rocks to a depth of two metres below ground.
Additionally, information on the continuation of these consolidated rock sequences at greater depth can generally be derived. The thematic foundation for map construction is primarily provided by the 1:25 000 map sheets of the geological map of Lower Saxony (GK25) and the derived electronic datasets. Information taken from soil scientific maps and current data from the fields of pedology/soil appraisal, and moor and peat studies are also incorporated. The stratigraphy (age) and the genesis (method of formation) are represented and described in the map and in the corresponding legend. In addition, the legend includes information on the primary and secondary petrographic constituents (rock consistence), and on the lime and humus content of the individual layers.
All units identified and numbered in the map are described using the abbreviations of the Symbolschlüssel Geologie (PREUSS et al. 1991).
Representation of the geological conditions in the base map is subject to certain rules. Rock strata at least two metres thick and exposed at the surface are designated by a colour fill, and by hatched shading where several layers are superimposed. Horizontal hatching marks stratigraphic sequences comprising only unconsolidated rock, oblique hatching signifies unconsolidated strata overlying consolidated rock. Widely spaced hatching indicates rock exposed at the surface; underlying strata are marked by narrower hatching. Both fill and hatching colours indicate the respective rock type. The original distribution of the rocks is shown in order to emphasise the natural geological conditions in densely built-up areas, even though they may be modified as a result of anthropogenic activity (e.g. made ground).
Additional documents
Informations about data
- Editing state:
continuous updating (onGoing).
- Date of last publication:
01.01.2007
- Date of creation:
01.01.2000
- Information about data origin:
An Datengrundlagen sind eingegangen:
- Daten aus der Geologischen Karte von Niedersachsen 1:25 000 sowie daraus abgeleitete digitale Datensätze
- Daten aus bodenkundlichen Karten 1:25 000 und 1:50 000
- Daten der Bodenschätzung
- Daten der ursprünglichen Moorverbreitung
- Digitales Höhenmodell Niedersachsen
- Daten aus der Bohrdatenbank Niedersachsen
- Kartierergebnisse Dritter, u.a. in Form von Berichten, Projektarbeiten, Dipl.-Kartierungen, Dipl.-Arbeiten
Contact person
Phone:
+49 (0)511-643-3161
Fax:
+49 (0)511-643-534015
Online access to data
To access the data online you can use the following applications/services:
Distribution information
Common informations (order proccess, product choise, prices):
NIBIS-Preisliste, AGB, Vergütungsverzeichnis für Leistungen des LBEG, Bestellhinweise (https://www.lbeg.niedersachsen.de/portal/live.php?navigation_id=613&article_id=905&_psmand=4); Produktkatalog des LBEG (https://www.lbeg.niedersachsen.de/download/1238)
Data formats
- ArcGIS-Shapefile
(
Version:
inapplicable)
- JPEG
(
Version:
inapplicable)
- PDF
(
Version:
inapplicable)
- TIFF
(
Version:
inapplicable)
Data medium
- CD-ROM (cdRom)
- Ausdruck (hardcopy)
- DVD (dvd)
Distribution contact
Phone:
+49 (0)511-643-3354
Fax:
+49 (0)511-643-533354
Additional information about the data
- Format of data:
digitale Karte in Raster- oder Vektorform (mapDigital)
- Topic:
Geowissenschaften
(geoscientificInformation)
- Key words:
inspireidentifiziert, sgd_Geologie, NIBIS-Metadaten
- Key words GEMET:
Geology
- Thesaurus name:
GEMET - INSPIRE themes, version 1.0
- Thesaurus date of puplication:
2008-06-01
- Geometry type:
Fläche (surface)
- Scale:
1:50000
- Structure of spacial data:
Flächen flächendeckend (fullSurfaceGraph)
- Coordinate system:
4647; ETRS89 / UTM zone 32N (zE-N)
(Europäisches Terrestrisches Referenzsystem von 1989 / Universale Transversale Mercatorabbildung Zone 32N)
- Altitude reference system:
DE_DHHN92_NH
- Reference layer:
Datenbestand (dataset )
- Language:
ger
- Character set:
utf8
Access- and security restrictions
- Security classification:
unbeschränkt (unclassified)
- Access restriction:
Urheberrecht (copyright)
- Restriction of application:
Allgemeine Geschäftsbedingungen -AGB- des Landesamtes für Bergbau, Energie und Geologie (LBEG) und die Anlage Vergütungsverzeichnis für Leistungen des LBEG
Information about content (auto detected)
- Amount datasets/features:
keine Angabe
- Spacial notation:
vector
- Eastern longitude:
6.5475
to
11.7416
- Northern latitude:
51.225
to
53.9343
About this data description
- Metadata standard:
Standard
ISO 19115
,
version
ISO 19115:2003/Cor. 1:2006 (E)
- Metadata status:
05.09.2022
- Metadata language:
ger
- Metadata character code:
utf8
Metadata contact