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02097nab a2200229 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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GSMBLIc |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
210728b ||||| |||| 00| 0 eng d |
| 041 ## - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
Einglish Language |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Weijermars, Ruud |
| 9 (RLIN) |
2110 |
| 245 ## - TITLE STATEMENT |
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| Title |
Growth rate observation from the moss-built checa travertine terrace, central Spain |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
279-286pp. |
| Other physical details |
Illustration |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
In situ observations of fossil and living specimens of the calcicolous mosses Bryum pseudotriquetrum, Cratoneuron commutatum and Catoscopium nigritum revealed very fast calcite depositional rates. Rhythmic layering in the fossil mosses corresponding with the seasonal climatic cycle suggests that the moss curtain occupied by these three mosses maintains the deposition of spongeous travertine layers at a mean rate of 4 cm a−1. A mean depositional rate of 4.2 cm a−1 may be calculated from measurements of the loss of bicarbonate from the springwater after it percolated through the moss curtain. These rates suggest that the 8 m high travertine terrace of Checa with a surface area of 800 m2 did not exist two millennia ago.<br/><br/>Mosses could be put to man's use for creating natural overgrowths on artificial surfaces, an idea based on an allusion by Wallner. He observed that the thread-forming, blue-green algae Vaucheria builds travertine deposits at an annual rate of 0.7–1.4 cm. We observed that the mosses Cratoneuron commutatum and Bryum pseudotriquetrum may form spongeous travertine layers at respective maximum rates of 11 and 14 cm a−1. This would reduce the time required to build natural overgrowths on artificial objects to a practical period of months. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
The checa travertine deposit - Spain |
| 9 (RLIN) |
11397 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Bryophyta |
| 9 (RLIN) |
11398 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Sedimentary petrology |
| 9 (RLIN) |
8580 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Bryum pseudotriquetrum |
| 9 (RLIN) |
11399 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
cratoneuron commutatum |
| 9 (RLIN) |
11400 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Mulder-Blanken, Carla W. |
| 9 (RLIN) |
11401 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Wiegers, Jaap |
| 9 (RLIN) |
11402 |
| 773 0# - HOST ITEM ENTRY |
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| Host Biblionumber |
1893 |
| Host Itemnumber |
2181 |
| Place, publisher, and date of publication |
London Cambridge University Press 1986 |
| Other item identifier |
002533 |
| Title |
Geological magazine : Vol. 123 Iss. 1-6 Year. 1986 |
| International Standard Serial Number |
00167568 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
|
| Call number suffix |
{082b} |
| Koha item type |
Article |
