ISO 710-4:1982 PDF

Name: ISO 710-4:1982 — Graphical symbols for use on detailed maps, plans and geological cross-sections — Part 4: Representation of metamorphic rocks
SKU: ISO 710-4:1982
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Graphical symbols for use on detailed maps, plans and geological cross-sections — Part 4: Representation of metamorphic rocks

Название (английский):

ISO 710-4:1982

Graphical symbols for use on detailed maps, plans and geological cross-sections — Part 4: Representation of metamorphic rocks

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 4
Дата публикации:: 1 апреля 1982 г.
Издание:: ISO IS 710 edition 1 version 1
ICS:: 01.080.30

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Описание (английский):

Provides a unified series of symbols and ornaments for the representation of metamorphic rocks. The symbols and ornaments may be divided in two groups as follows: principal types; varia. They are reproduced in two tables which, being derived from a logical system, may be completed easily in case of need.

Abstract

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Стандарты, упомянутые в описании

Overview

ISO 710-4:1982 is an international standard developed by the International Organization for Standardization (ISO) that defines graphical symbols for representing metamorphic rocks on detailed maps, plans, and geological cross-sections. As part of the broader ISO 710 series dedicated to geological symbols, Part 4 focuses specifically on the representation of metamorphic rocks. The standard provides a logical and unified system of symbols and ornaments, facilitating consistent and clear communication in geological documentation and cartography.

The standard divides symbols into two primary groups: main types and varia. These are provided in two comprehensive tables, making the system expandable and adaptable to various geological mapping needs. Adoption of ISO 710-4 ensures clarity and uniformity for geologists, cartographers, and engineers involved in geological interpretation and reporting.

Key Topics

Symbol System for Metamorphic Rocks The standard introduces a wavy line as the basic symbol for metamorphic rocks, which can be modified with strokes to indicate different metamorphic grades. This symbol serves as the foundation for representing the three main metamorphic facies:

Green schists (epizone)
Amphibolites (mesozone)
Granulites (catazone)

Principal Rock Types Representation Symbols correspond to principal metamorphic rock types such as:

Schists (mica, sericitic, chlorite)
Gneisses (acid, basic, micaceous)
Granulites and amphibolites
Quartzite and marble (common across facies) Each symbol allows variations for para- and ortho- metamorphic rocks to reflect differing origins and compositions.

Varia Symbols for Complex Rock Types Table 2 covers additional rock types and special cases not fitting neatly into the main categories, including:

Migmatitic rocks (e.g., veined granitic gneiss, charnockites)
Diaphthoritic rocks (retro-metamorphosed types)
Miscellaneous metamorphic rocks such as glaucophane schist and eclogite

Representation of Mineralogy and Rock Transformation The standard integrates mineral symbols and Latin abbreviations to indicate typical minerals present in metamorphic rocks, and depicts the degree of metamorphism and rock transformation through combinations and arrangements of symbols.

Orientation and Scale Adaptability Symbols are designed to express preferred orientations in the rock fabric and can be adapted to scales where detailed discrimination of metamorphic grades is possible or where general representation is sufficient.

Applications

Geological Mapping and Cartography ISO 710-4 provides standard symbols essential for creating accurate, large-scale geological maps and plans, ensuring that metamorphic units are easily identifiable and scientifically consistent.

Geological Cross-Sections The symbols support detailed cross-sectional drawings for mining, construction, environmental studies, and educational purposes, visually representing the complex structure and metamorphic history.

Academic and Research Publications Researchers and professors can use this standardized symbology to produce universally understandable illustrations in publications and presentations.

Resource Exploration and Mining Mining engineers and geologists use these symbols to document rock types and transformations in exploration reports and feasibility studies.

Geotechnical Engineering and Environmental Studies Accurate depiction of metamorphic rock types assists in assessing rock mass properties, stability, and environmental impact analyses.

Related Standards

The ISO 710 series includes other parts that complement ISO 710-4 for comprehensive geological symbolization:

ISO 710-1 – General rules of representation for geological mapping

ISO 710-2 – Representation of sedimentary rocks, crucial for sedimentary geology interpretation

ISO 710-3 – Representation of magmatic rocks, closely linked with metamorphic rock transformations

ISO 710-5 – Representation of minerals, which augments rock symbols with mineral details

ISO 710-6 – Representation of contact rocks, metamorphic alterations, and alteration processes

ISO 710-7 – Tectonic symbols for representing structural geology

Using these standards together ensures a consistent and professional approach to geological documentation and enhances cross-disciplinary communication.

By adopting ISO 710-4:1982, professionals engaged in geological mapping and research can achieve uniformity and accuracy in the graphical representation of metamorphic rocks, improving clarity and data interoperability in geological sciences worldwide.

ISO 710-4:1982 PDF

Abstract

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Overview

Key Topics

Applications

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