Vocabularies — view dictionary terms
DIC_ROCK_ALL (3677 rows)
Dictionary table based on the entire version 3 of the BGS Rock Classification Scheme and is populated directly from the 3 supplying tables (BGS.ROCK_NAME_V3, BGS.ROCK_COMPOSITE and BGS.DIC_ROCK_DUMMY). It contains both the base rock names and addditional codes required for specific application, eg. composite names for use on digital geological maps. It is formally approved as the official source of ALL database codes to be used in BGS corporate databases and MUST be followed.
Displaying rows 1118 to 1137 of 3677
| Row | CODE | SOURCE_CODE | DESCRIPTION | TRANSLATION | STATUS | USER_ENTERED | DATE_ENTERED | USER_UPDATED | DATE_UPDATED | TRANSFER | RCS_STATUS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1118 | LMPLR | RN | Lamproite, leucite-richterite - A type of lamproite. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: mamilite. | Leucite-richterite lamproite | C | AWEL | 17-DEC-04 | TMCM | 22-FEB-19 | I | U |
| 1119 | LMPO | RC | Porcellaneous limestone | Porcellaneous limestone | C | TMCM | 07-APR-09 | TMCM | 24-AUG-18 | I | ? |
| 1120 | LMPSST | RN | Lime-pseudosparstone - A type of limestone, classified on the basis of its diagenetic texture. It is a limestone composed almost totally of a divergent radial fibrous calcite cement in which grains or in-situ biogenic material do not constitute a framework. The calcite pseudospar occurs as in-situ botryoidal masses commonly found in the core of algal mounds and probably formed from early diagenetic alteration of aragonite masses. The diagenetic process does not cause any alteration to the depositional or biological texture. British Geological Survey Research Report RR/99/03, section 3.1, table 3 and fig. 6. | Lime-pseudosparstone | C | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | R | |
| 1121 | LMPST | RN | Lime-packstone - A type of limestone, classified on the basis of its depositional texture. It is a grain-supported limestone with intergranular spaces filled by matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 3.1, table 3 and fig. 6. | Lime-packstone | C | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | R | |
| 1122 | LMPT | RN | Lamproite - A type of exotic crystalline igneous rock. There is no universally accepted definition for lamproites, however they occur characteristically as lavas, pipes and dykes. Some lamproites have a fragmental origin (i.e. they are volcaniclastic). In the Rock Classification Scheme they are classified on the predominance of phlogopite, richterite, olivine, diopside, sanidine and leucite. British Geological Survey Research Report RR/99/06, section 6.5. | Lamproite | C | GRBA | 24-FEB-00 | TMCM | 22-FEB-19 | R | |
| 1123 | LMPY | RN | Lamprophyre - A type of exotic crystalline igneous rock. Lamprophyres are mesocratic to melanocratic igneous rocks, usually hypabyssal, with a panidiomorphic texture and abundant mafic phenocrysts of dark mica (biotite or Fe-phlogopite) and/or amphibole, with or without pyroxene, with or without olivine, and sometimes melilite, set in a matrix of the same minerals. Any feldspar, usually alkali feldspar, is restricted to the groundmass. British Geological Survey Research Report RR/99/06, section 6.7. | Lamprophyre | C | GRBA | 24-FEB-00 | TMCM | 22-FEB-19 | A | |
| 1124 | LMPYFO | RN | Lamprophyre, foliated | Foliated lamprophyre | C | GRBA | 24-FEB-00 | TMCM | 31-AUG-18 | U | |
| 1125 | LMSA | RC | Limestone and [subequal/subordinate] sandstone, interbedded | Interbedded limestone and [subequal/subordinate] sandstone | C | DJLO | 04-DEC-06 | TMCM | 24-AUG-18 | I | ? |
| 1126 | LMSD | RN | Lime-sediment - In the Rock Classification Scheme, these are carbonate sediments in which the dominant carbonate mineral is calcium carbonate in the form of calcite, aragonite and/or vaterite (vaterite is a metastable hexagonal form of calcium carbonate. It is exceptionally rare and it is unlikely that it would ever occur as the main mineral). British Geological Survey Research Report RR/99/03, section 3 and fig. 6. | Lime-sediment | C | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | A | |
| 1127 | LMSG | RN | Limestone, silt-grade | Silt-grade limestone | C | AWEL | 14-DEC-04 | TMCM | 31-AUG-18 | I | U |
| 1128 | LMSND | RN | Lime-sand - A type of lime-sediment. In the Rock Classification Scheme, it is a lime-sediment in which clasts are predominantly 32 µm to 2 mm, with less than 75% of the clasts smaller than 32 µm and less than 25% larger than 2 mm. The grain size classes are defined in the same way as the siliciclastic sediments. British Geological Survey Research Report RR/99/03, section 3.1, table 2 and fig. 6. See also: silicate-sand. | Lime-sand | C | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | R | |
| 1129 | LMSPT | RN | Lime-sparstone - A type of limestone, classified on the basis of its diagenetic texture. It is a limestone composed of obliterative sparry calcite crystals, typically in inequant, blocky mosaics, with a crystal size larger than 32 µm. British Geological Survey Research Report RR/99/03, section 3.1, table 3 and fig. 6. | Lime-sparstone | C | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | R | |
| 1130 | LMST | RN | Limestone - In the Rock Classification Scheme, these are carbonate sedimentary rocks in which the dominant carbonate mineral is calcium carbonate in the form of calcite, aragonite and/or vaterite (vaterite is a metastable hexagonal form of calcium carbonate. It is exceptionally rare and it is unlikely that it would ever occur as the main mineral). Two classification schemes are available to give root names to limestones: the first scheme is based on texture; the second scheme is designed to classify limestones composed dominantly of one constituent. Textural classification includes use of depositional (i.e. matrix-supported versus grain-supported), biogenic, and diagenetic textures. British Geological Survey Research Report RR/99/03, section 3.1 and fig. 6. | Limestone | C | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | A | |
| 1131 | LMSTMD | RC | Limestone with subordinate mudstone | Limestone with subordinate mudstone | C | DJLO | 19-MAR-09 | TMCM | 24-AUG-18 | I | ? |
| 1132 | LMSTN | RN | Limestone, nodular (cornstone) | Nodular limestone (cornstone) | C | AWEL | 11-JUN-01 | TMCM | 31-AUG-18 | U | |
| 1133 | LMSTS | RN | Limestone, siliceous | Siliceous limestone | C | AWEL | 16-MAR-04 | TMCM | 31-AUG-18 | U | |
| 1134 | LMWST | RN | Lime-wackestone - A type of limestone, classified on the basis of its depositional texture. In the Rock Classification Scheme, it is a matrix-supported limestone composed of less than 75% matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 3.1, table 3 and fig. 6. | Lime-wackestone | C | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | R | |
| 1135 | LP | RN | Cobbles, peaty [Unlithified Deposits Coding Scheme] | Peaty cobbles [UDCS] | C | AWEL | 09-JAN-02 | TMCM | 30-AUG-18 | U | |
| 1136 | LPASH | RN | Lapilli-ash - A type of pyroclastic-sediment. In the Rock Classification Scheme, it is a pyroclastic-sediment in which the average size of more than 75% of the pyroclastic fragments is less than 64 mm. Lapilli-tephra, lapilli-ash, and ash are separated according to the relative proportion of lapilli-grade (2 - 64 mm) and ash-grade (<2 mm) fragments: if between 25% and 75% of the fragments are lapilli the sediment is lapilli-ash. It is the unconsolidated equivalent of lapilli-tuff. British Geological Survey Research Report RR/99/06, section 4.2 and fig. 4. | Lapilli-ash | C | GRBA | 24-FEB-00 | TMCM | 15-FEB-19 | R | |
| 1137 | LPDI | RC | Lamprophyres and dioritic-rock | Lamprophyres and dioritic-rock | C | DJLO | 23-MAY-06 | TMCM | 24-AUG-18 | I | ? |
Displaying rows 1118 to 1137 of 3677