A Geological Map of the World by the CGMW, designed to show the earth’s physiography while highlighting volcanoes & meteoric impact craters. This is sheet 1 of a pair of complementary geological maps, each annotated in English & French & accompanied by a booklet of extensive explanatory notes. Colour tinting represents land altimetry & ocean bathymetry, with the latter including isobaths at -200m, -500m then every 1000m. Ice cap altitude contours are at 1000m intervals. Relief-shading is also applied to accentuate significant relief features eg. mountain ranges. The world’s highest peaks, lowest depressions & the deepest ocean trench are highlighted & identified, & symbols denote active submarine volcanoes & onshore volcanoes
- active & recent (< 10, 000 yrs B.P.). Meteor impact craters are also shown, distinguishing between those greater or less than 10km in diameter. in addition, the location of the Tunguska airblast is indicated. The main map is Pacific-centred on a Mercator projection, with the two polar areas on stereographic projections (1:46, 0000, 000). Latitude & longitude lines are drawn at 10° intervals. NB. No location names are included on the map. The map legend is in English & French. The accompanying booklet (English only) explains content & sources for maps 1 & 2.1st edition. Published in 2009.