0TSO710/ NTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION -MEKAHAPOIHAS OPTAHW3ALIM IO CTAHIAPTW3ALIMM·ORGANISATION INTERNATIONALE DE NORMALISATION Graphical symbols for use on detailed maps, plans and geological cross-sections - Part Il : Representation of sedimentary rocks Symbolesgraphiquesautilisersurles cartes,lesplansetles coupesgeologiquesdetailliés- Partie Il :Representation des roches sedimentaires First edition -1974-09-15 AvsI Internat Dcc Sect OCT. 1-1974 ISO 710/lI-1974 (E) UDC 526.89: 003.62 Ref.No.1SO 710/II-1974 (E) Price based on 7 pa FOREWORD ISo (the International Organization for Standardization)is a worldwide federation of national standards institutes (iso Member Bodies). The work of developing International Standards is carried out through ISo Technical Committees. Every Member Body interested 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-governmentai, in liaison with IsO, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the ISo Council. Prior to 1972, the results of the work of the Technical Committees were published as Iso Recommendations; these documents are now in the process of being transformed into International Standards. As part of this process, Technical Committee ISO/TC 82 has reviewed ISO Recommendation R 710/1I and found it suitable for transformation. International Standard ISO 710/ll therefore replaces 1SO Recommendation R710/11-1968. ISO RecommendationR710/llwas approved by the Member Bodies of the following countries : Belgium Greece Poland Brazil Hungary Portugal Chile India South Africa, Rep. of Czechoslovakia Italy Spain Egypt, Arab Rep. of ueder Sweden France Korea, Rep. of Turkey Germany Netherlands U.S.S.R. The Member Bodies of the following countries expressed disapproval of the Recommendation on technical grounds : New Zealand* Yugoslavia The Member Body of the foliowing country disapproved the transformation of ISO/R710/ll into an International Standard: Poland Other documents in this series on graphical symbols for use on detailed maps, plans and geological cross-sections include : Part I : General rules of representation. Part Ill : Representation of magmatic rocks PartIV : Representation of metamorphic rocks.(in preparation.) Part V : Representation of minerals. (In preparation.) Subsequently, this Member Body approved the Recommendation. international OrganizationforStandardization,1974 ? ISO710/II-1974(E) INTERNATIONALSTANDARD Graphical symbols for use on detailed maps, plans and geological cross-sections - Part Il : Representation of sedimentary rocks 1 SCOPEANDFIELDOFAPPLICATION characterized by their petrographic peculiarities, for example, by a binder such as argillaceous sandstone, This International Standard provides a unified series of box 5/8, or by additionai constituents such as gritty sand, symbolsand ornaments therepresentationof for box 2/3.The boxes at the intersection of a basic type sedimentary rocks on detailed maps, plans and geological (horizontalline)andofthesamecharacter(vertical cross-sections. column) are left white and are emphasized by a diagonal. The symbols and ornaments may be divided in two groups, as follows : 2.2 Individual symbols 1) principal types; As far as possible,the selected ornaments express in a 2) varia. diagrammatic way the nature of the rocks. This is relatively easy to accomplish in the case of clastic sedimentary rocks. They are reproduced in two tables which, being derived from a logical system,may be completed easily in case of need. 2.2.1 Detritus This is represented by sharp-cornered particles; rounded gravel is represented by round particles. The smaller grain 2 PRINCIPALTYPES of sand is marked on the drawing by a dot. A more detailed subdivis