ISO-710-III-1974.pdf
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1、a! INTERNATIONAL STANDARD .43$710 / 111 (II J a! INTERNATIONAL ORGANlZATlON FOR STANDARDIZATION .MEXflYHAPOflHAJI OPrAHCI3AUHR n0 CTAHiJAPTH3ALViH.ORGANlSATlON INTERNATIONALE DE NORMALlSATlON Graphical symbols for use on detailed maps, plans and geological cross-sections - Part I II : Representation
2、 of magmatic rocks Symboles graphiques 2 utiliser sur les cartes, /es plans et les coupes gkologiques de taillks - Partie ill : Reprtkentation des roches magmatiques First edition - 1974-09-15 iz 2 UDC 526.89 : 003.62 Ref. No. IS0 710/111-1974 (E) = B Descriptors : geology, maps, drawings, transvers
3、e sections, igneous rocks, symbols, graphical symbols. PI 0 2? Price based on 6 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 02:34:28 MDTNo reproduction or networking pe
4、rmitted without license from IHS -,-,- FOREWORD IS0 (the International Organization for Standardization) is a worldwide federation of national standards institutes (IS0 Member Bodies). The work of developing International Standards is carried out through IS0 Technical Committees. Every Member Body i
5、nterested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the Technical Committees
6、 are circulated to the Member Bodies for approval before their acceptance as International Standards by the IS0 Council. Prior to 1972, the results of the work of the Technical Committees were published as IS0 Recommendations; these documents are now in the process of being transformed into Internat
7、ional Standards. As part of this process, Technical Committee ISO/TC 82 has reviewed IS0 Recommendation R 71O/lll and found it suitable for transformation. International Standard IS0 710/l II therefore replaces IS0 Recommendation R 71O/lll-1970. IS0 Recommendation R 71O/lll was approved by the Membe
8、r Bodies of the following countries : Australia Belgium Czechoslovakia Egypt, Arab Rep. of France Germany Greece India Iran Israel Italy Netherlands Spain Sweden Turkey United Kingdom U.S.S.R. The Member Bodies of the following countries expressed disapproval of the Recommendation on technical groun
9、ds : Chile Hungary Ireland* New Zealand* South Africa, Rep. of* The Member Body of the following country disapproved the transformation of ISO/R 71O/lll into an International Standard : Poland Other documents in this series on graphical symbols for use on detailed maps, plans and geological cross-se
10、ctions include : Part I : General rules of representation. Part I I : Representation of sedimentary rocks. Part IV : Representation of metamorphic rocks. (In preparation.) Part V : Representation of minerals. (In preparation.) * Subsequently, these Member Bodies approved the Recommendation. 0 Intern
11、ational Organization for Standardization, 1974 l Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 02:34:28 MDTNo reproduction or networking permitted withou
12、t license from IHS -,-,- INTERNATIONAL STANDARD ISO 710/111-1974 (El Graphical symbols for use on detailed maps, plans and geological cross-sections - Part I II : Representation of magmatic rocks 1 SCOPE AND FIELD OF APPLICATION This International Standard provides a series of symbols and ornaments
13、for the representation of magmatic rocks on detailed maps, especially large-scale maps, plans and geological cross-sections. The symbols may be divided in two groups : 1) main types; 2) varia. They are reproduced in two tables which, being derived from a logical system, may be completed easily in ca
14、se of need. 2.1.3 Column 3 is reserved for volcanic rocks. The subdivision corresponds to that of the plutonic rocks. 2.2 Individual symbols A distinction in the grain size of rocks can be shown by the smaller or greater size of the individual symbols, for example, the difference between coarse-grai
15、ned syenite and fine-grained syenite can be indicated by the difference in size of the same symbol (see figures 1 and 2). l-l * FIGURE 1 - Coarse-grained syenite FIGURE 2 - Fine-grained syenite 2 MAIN TYPES 2.1 Principles of representation (see table 1) The table of the main types comprises plutonic
16、 and volcanic rocks. 2.1.1 In the first column are given the plutonic rocks subdivided into eight groups, essentially according to their silica content. For each of the groups 1 to 6 two basic symbols are indicated beside column 1, under the letters a and b, while only one basic symbol is assigned t
17、o each of groups 7 and 8. Two basic symbols have been kept for the first six groups to allow, where it seems desirable, on the same sheet, the representation of rocks of similar petro- graphic composition but of different age, for example. When a more detailed subdivision of the main types is requir
18、ed, the symbols assigned to various groups are slightly modified (see column 2 for groups 3, 4, 6 and 7). If the differentiation is to be taken still further, suitable additional symbols are to be used. 2.1.2 The dyke rocks which correspond to plutonic rocks are to be represented by the same symbols
19、 as the plutonic rocks. Special symbols for those dyke rocks are unnecessary; it is sufficient to put the respective plutonic rock symbols between the two lines which delimit the dyke. Sill rocks are represented in the same way. To indicate porphyritic texture the ordinary symbol is replaced at inte
20、rvals by a larger symbol (see figure 3). FIGURE 3 - Porphyritic granite or granite porphyry 2.2.1 Plutonic and volcanic rocks The symbols representing plutonic rocks are derived from a cross (+) or a letter “Y (see figure 4). /= + /j ; y / FIGURE 4 - Plutonic rocks The symbols representing volcanic
21、rocks are derived from a right angle placed on its point (v) (see figure 5). FIGURE 5 -Volcanic rocks These basic symbols are varied in the same way according to the silica content of the rocks (see table 1). 1 Copyright International Organization for Standardization Provided by IHS under license wi
22、th ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 02:34:28 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 710/111-1974 (E) TABLE 1 - Main types PLUTONIC ROCKS VOLCANIC ROCKS 1 a b 2 a b 3 Rock group Group More differentiated Symbol rock t
23、ypes SpllbOl Rock types Symbol 1 I Alkali-granite - - / I I Alkali-rhyolite / 2 Very acidgranite -I- , ./ Leucorhyolite . Normal granite +Y Rhyolite (Liparite) v 3 Granite +Y1 2 Granodiorite -+Y Dacite d 3 Quartz-diorite +y Quartz-andesite v 4 Syenite +y I Alkali-syenite = = ; Alkali trachyte 2 Syen
24、ite iY Trachyte v +Y3 Monzonite +=Y Latite w 5 Diorite Andesite v 5 Gabbro +y Gabbro +Y 2 Norite +Y Basalt v 3 Anorthosite Y 1 Nepheline-syenite Y Phonolite v 7 Feldspathoidal plutonic rocks Y 2 Essexite/Theralite Y Tephrite / 3 Ijolite Y Feldspathoidal basalt v 8 Ultrabasic rock #= Picrite Picrite-
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