Simplified Geology of Madagascar

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Justin Moat, Royal Botanic Gardens, Kew.
Originator: David Du Puy, Royal Botanic Gardens, Kew.
Publication_Date: 19971212
Title: Simplified Geology of Madagascar
Publication_Information:
Publication_Place: London
Publisher: Justin Moat and David Du Puy, Royal Botanic Gardens, Kew.
Online_Linkage: http://www.rbgkew.org.uk
Larger_Work_Citation:
Citation_Information:
Originator: Justin Moat and David Du Puy, Royal Botanic Gardens, Kew(comp.)
Publication_Date: 19971215
Title: Malagasy Plant Diversity Project
Publication_Information:
Publication_Place: London
Publisher: Justin Moat and David Du Puy, Royal Botanic Gardens, Kew.
Other_Citation_Details:
Du Puy, D.J and Moat, J.F. (1998, in press). Vegetation Mapping and Classification in Madagascar (using GIS): Implications and Recommendations for the Conservation of Biodiversity. In: Cutler, D.F., Huxley, C.R. & Lock, J.M. (Eds.), The ecology, chorology and taxonomy of the African and Madagascan floras -  Proceedings of the Frank White Memorial Symposium. Kew Bulletin Additional Series. Royal Botanic Gardens, Kew.

Du Puy, D.J and Moat, J.F. (1997). Using GIS for vegetation mapping and conservation planning in Madagascar. In: Plant Talk (Plant Conservation Worldwide), (Issue 11 - October 1997), p 24. The Botanical Information Company Ltd, UK.

Du Puy, D.J. and Moat, J. (1996). A refined classification of the primary vegetation of Madagascar based on the underlying geology: using GIS to map its distribution and to assess its conservation status. In: W.R. Lourenço (editor). Proceedings of the International Symposium on the Biogeography of Madagascar, pp. 205--218, + 3 maps. Editions de l’ORSTOM, Paris.

Online_Linkage: http://www.rbgkew.org.uk
Description:
Abstract:
This map was digitized from the geology map of Madagascar (BESAIRIE, 1964). The 96 original categories were reclassified into predominant rock types which seem to have an important effect on the vegetation they support. The categories of sedimentary rocks include sandstones, loose (unconsolidated) sands, and two limestone categories of different ages (one of which produces the spectacular "tsingy" areas of jagged, highly eroded limestone pinnacles). A broad category of metamorphic rocks (including granites and migmatites), often covered by thick layers of laterites, covers large areas of the central and eastern areas of the island. Lavas and basalts, and several restricted rock types including quartzites, marbles and ultrabasics are also distinguished.
Purpose:
This data was produced to be used for a rapid Biodiveristy assessement for Madagascar. It was used in conjunction with, 'Remaining Primary Vegetation' and 'Protected Areas of Madagascar'
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19950000
Ending_Date: 19980000
Currentness_Reference: Publication Date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 43.2237
East_Bounding_Coordinate: 50.4702
North_Bounding_Coordinate: -11.9412
South_Bounding_Coordinate: -25.6095
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Geology
Theme_Keyword: Madagascar
Theme_Keyword: Substrate
Theme_Keyword: Rock Type
Theme_Keyword: Vegetation Mapping
Theme_Keyword: Biodiversity
Theme_Keyword: Conservation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Madagascar
Place_Keyword: Africa
Place_Keyword: Island
Access_Constraints: None
Use_Constraints: non-profit/research
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Royal Botanic Gardens, Kew.
Contact_Person: Justin Moat
Contact_Position: GIS Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: Herbarium, Kew Green
City: Richmond
State_or_Province: Surrey
Postal_Code: TW 3AB
Country: UK
Contact_Voice_Telephone: +44 (0)181 332 5237
Contact_Facsimile_Telephone: +44 (0)181 332 5278
Contact_Electronic_Mail_Address: J.Moat@rbgkew.org.uk
Hours_of_Service: 10 am - 4 pm
Browse_Graphic:
Browse_Graphic_File_Name: geolslar.gif
Browse_Graphic_File_Description: GIF
Browse_Graphic_File_Type: Very Large Gif of Geology Map
Browse_Graphic:
Browse_Graphic_File_Name: geolsmed.gif
Browse_Graphic_File_Description: GIF
Browse_Graphic_File_Type: Med Size Gif of Geology Map
Browse_Graphic:
Browse_Graphic_File_Name: geolsthb.gif
Browse_Graphic_File_Description: GIF
Browse_Graphic_File_Type: Thumb nail Gif of Geology Map
Data_Set_Credit:
FTM Madagascar for permission to digitise and use Besires original paper maps.
Native_Data_Set_Environment:
ArcView version 3.0a geolsimp.shp Windows 95
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Categories are general, and are for the predominant Rock Types. Original geology Maps accuracy is unknown.
Logical_Consistency_Report: See references for details of indicator plant species.
Completeness_Report:
It seems that a few very small polygons in the south of the island are missing due to incorrectly classification of the orginal maps! (These are very small patches of Ultrabasics)
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Accuracy is only as accurate as the orginal maps. 1,000,000 Digitising accuracy/Weed tolence was to 0.5 mm also taking into account line thickness. I would suggest an accuracy of 1 mm (roughtly 1km or 0.0093 of a degree)
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: BESAIRIE, H.
Publication_Date: 1964
Title: Carte Géologique de Madagascar
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Antananarivo
Publisher: Service Géologique
Source_Scale_Denominator: 1000000
Type_of_Source_Media: Paper maps to Digitised maps
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19560000
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation: BESAIRIE
Source_Contribution:
1,000,000 which was recategorised
Process_Step:
Process_Description:
Main processing only listed 1. Reclassification of orginal geology data 2. Dissolving of share boundaries. 3. Conversion to shape file
Process_Date: 1996
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Justin Moat
Contact_Organization: Royal Botanic Gardens, Kew.
Contact_Position: GIS Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: Herbarium, Kew Green
City: Richmond
State_or_Province: Surrey
Postal_Code: TW 3AB
Country: UK
Contact_Voice_Telephone: +44 (0)181 332 5237
Contact_Facsimile_Telephone: +44 (0)181 332 5278
Contact_Electronic_Mail_Address: J.Moat@rbgkew.org.uk
Hours_of_Service: 10 am - 4 pm
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 1001
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 1:1,000,000
Longitude_Resolution: 1:1,000,000
Geographic_Coordinate_Units: Decimal degrees
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: geolsimp.dbf
Entity_Type_Definition: Shapefile Attribute Table
Entity_Type_Definition_Source: None
Attribute:
Attribute_Label: Area
Attribute_Definition: Area of polygon
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.000022
Range_Domain_Maximum: 28.007420
Attribute:
Attribute_Label: Perimeter
Attribute_Definition: Perimeter of polygon
Attribute_Definition_Source: Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.021639
Range_Domain_Maximum: 159.548200
Attribute:
Attribute_Label: Geolsimp_
Attribute_Definition: Internal ID (unique)
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 1002
Attribute:
Attribute_Label: Geolsimp_i
Attribute_Definition: Internal ID
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1001
Attribute:
Attribute_Label: Reclass_id
Attribute_Definition: Reclass ID number
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.00000
Range_Domain_Maximum: 13.00000
Attribute:
Attribute_Label: Reclass_na
Attribute_Definition: Full name of New category
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Unrepresentable_Domain: Character field
Overview_Description:
Entity_and_Attribute_Overview:
BESAIRIE, H., 1964. Carte Géologique de Madagascar, au 1:1,000,000e, trois feuilles en couleur. Service Géologique, Antananarivo.

BESAIRIE, H. and M. COLLIGNON, 1972. Géologie de Madagascar; I, Les terrains sédimentaires. Annales Géologiques de Madagascar, 35: 1-463.

BOAST, J. and A.E.M. NAIRN, 1982. An Outline of the Geology of Madagascar. In: A.E.M. Nairn and F.G. Stehli (eds.), The Ocean Basins and Margins, Vol. 6, The Indian Ocean. pp. 649-696. Plenum Press, New York & London.

BRENON, P., 1972. The Geology of Madagascar. In: R. Battistini and G. Richard-Vindard (eds.), Biogeography and Ecology in Madagascar. pp. 27-86. Dr. W. Junk B.V. Publ., The Hague, Netherlands.

STOREY, M., J.J. MAHONEY, A.D. SAUNDERS, R.A. DUNCAN, S.P. KELLEY, M.F. COFFIN. Timing of Hot Spot Related Volcanism and the Breakup of Madagascar and India. Science 267: 852-855 (1995).

Entity_and_Attribute_Detail_Citation:
Du Puy D. and Moat J. in Cutler, D.F., Huxley, C.R. & Lock, J.M. (Eds.), The ecology, chorology and taxonomy of the African and Madagascan floras - Proceedings of the Frank White Memorial Symposium. Kew Bulletin Additional Series. Royal Botanic Gardens, Kew.
Entity_and_Attribute_Detail_Citation:
Du Puy D. and Moat J.W.R. Lourenço (editor). Proceedings of the International Symposium on the Biogeography of Madagascar, pp. 205--218, + 3 maps. Editions de l’ORSTOM, Paris.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Royal Botanic Gardens, Kew.
Contact_Person: Justin Moat
Contact_Position: GIS Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: Herbarium, Kew Green
City: Richmond
State_or_Province: Surrey
Postal_Code: TW 3AB
Country: UK
Contact_Voice_Telephone: +44 (0)181 332 5237
Contact_Facsimile_Telephone: +44 (0)181 332 5278
Contact_Electronic_Mail_Address: J.Moat@rbgkew.org.uk
Hours_of_Service: 10 am - 4 pm
Resource_Description: Geolsimp
Distribution_Liability: None
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Information_Content:
Geolsimp.shp - ArcView Shape File (polygon) Geolsimp.dbf - ArcView/DBase (Attributes) Geolsimp.shx - ArcView Shape File index Geolsimp.avl - ArcView Shape File Legend Geolsimp.met metadata in text/Corpsmet format + Browse Graphics
File_Decompression_Technique: zipped
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://www.rbgkew.org.uk
Access_Instructions: Look up the Madagascar Biodiversity pages
Online_Computer_and_Operating_System: Unix, acess data through http
Fees: Media and postage cost
Metadata_Reference_Information:
Metadata_Date: 19971212
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Royal Botanic Gardens, Kew.
Contact_Person: Justin Moat
Contact_Position: GIS Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: Herbarium, Kew Green
City: Richmond
State_or_Province: Surrey
Postal_Code: TW 3AB
Country: UK
Contact_Voice_Telephone: +44 (0)181 332 5237
Contact_Facsimile_Telephone: +44 (0)181 332 5278
Contact_Electronic_Mail_Address: J.Moat@rbgkew.org.uk
Hours_of_Service: 10 am - 4 pm
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 19940608
Metadata_Time_Convention: Local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Generated by mp on Mon Jan 05 15:35:07 1998