國立虎尾科技大學 |

The formation of plant compression fossils : = Experimental and sedimentological investigations.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	The formation of plant compression fossils :/
Reminder of title:	Experimental and sedimentological investigations.
Author:	Rex, Gillian Mary.
Description:	1 online resource (303 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 78-11, Section: C.
Contained By:	Dissertations Abstracts International78-11C.
Subject:	Plant biology. -
Online resource:	click for full text (PQDT)
ISBN:	9781339625577

The formation of plant compression fossils : = Experimental and sedimentological investigations.
Rex, Gillian Mary.

The formation of plant compression fossils :Experimental and sedimentological investigations. - 1 online resource (303 pages)

Source: Dissertations Abstracts International, Volume: 78-11, Section: C.

Thesis (Ph.D.)--University of London, Bedford College (United Kingdom), 1984.

Includes bibliographical references

The mechanisms and processes that lead to the formation of a plant compression fossil have been experimentally reproduced and studied in the present investigation. This research has used two main lines of investigation: firstly, experimental modelling of the fossilisation process; and secondly, a detailed examination of plant compression fossils. Early experimental modelling was based on the simplest system possible. A dry compression apparatus was used in which artificial materials, representing plant and matrix, were subjected to vertical deformation. Forms were produced which closely resembled vertical sections of Sawdonia, Stigmaria, Calamites and Lepidodendron. Further apparatus was subsequently constructed, in which wet sediment and actual plant material were compressed, thus more closely reproducing the natural system of compacting sediment. Using this apparatus, factors, such as the role of grain size, change in dimensions of the plant organ, and rigidity of plant tissues were investigated. A recirculating laboratory flume tank was used to examine the flow conditions, and other parameters that were required to produce burial of plant material and in-fill of hollow stems. The results obtained formed a basis for interpreting the conditions of formation of observed fossil stem infills. Experimental compression of the stems buried in the flume indicated the effect of an infill on the eventual form of the fossil. Examination of plant compression fossils in the present investigation has been mainly based on a study of vertical sections through the matrix. These reveal the overall structure of the compression, and the processes leading to its formation. The Carboniferous plants, Cyperites, Alethopteris, Lepidostrobus and Trigonocarpus, have been investigated in this way. An understanding of the factors that dictate the final form of the fossil, using the techniques described above, gives new insight into the fossilisation process. This is of potential value in reconstructing plants from fossils only known in the compression state of preservation. This is illustrated with reference to Permian ovulate glossopterid fructifications from Gondwanaland. Computer modelling provides an alternative method for studying the compression process, and an account is given of a computer-based investigation of the deformation process.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9781339625577Subjects--Topical Terms:

1190898
Plant biology.
Subjects--Index Terms:

Plant compression fossilsIndex Terms--Genre/Form:

554714
Electronic books.

The formation of plant compression fossils : = Experimental and sedimentological investigations.
LDR:03710ntm a22003497 4500 001 1144177
005 20240531083751.5
006 m o d
007 cr mn ---uuuuu
008 250605s1984 xx obm 000 0 eng d
020 $a 9781339625577
035 $a (MiAaPQ)AAI10098497
035 $a (MiAaPQ)RLUKRoyalHollowayUniversity11753
035 $a AAI10098497
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Rex, Gillian Mary. $3 1469115
245 1 4 $a The formation of plant compression fossils : $b Experimental and sedimentological investigations.
264 0 $c 1984
300 $a 1 online resource (303 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 78-11, Section: C.
500 $a Publisher info.: Dissertation/Thesis.
502 $a Thesis (Ph.D.)--University of London, Bedford College (United Kingdom), 1984.
504 $a Includes bibliographical references
520 $a The mechanisms and processes that lead to the formation of a plant compression fossil have been experimentally reproduced and studied in the present investigation. This research has used two main lines of investigation: firstly, experimental modelling of the fossilisation process; and secondly, a detailed examination of plant compression fossils. Early experimental modelling was based on the simplest system possible. A dry compression apparatus was used in which artificial materials, representing plant and matrix, were subjected to vertical deformation. Forms were produced which closely resembled vertical sections of Sawdonia, Stigmaria, Calamites and Lepidodendron. Further apparatus was subsequently constructed, in which wet sediment and actual plant material were compressed, thus more closely reproducing the natural system of compacting sediment. Using this apparatus, factors, such as the role of grain size, change in dimensions of the plant organ, and rigidity of plant tissues were investigated. A recirculating laboratory flume tank was used to examine the flow conditions, and other parameters that were required to produce burial of plant material and in-fill of hollow stems. The results obtained formed a basis for interpreting the conditions of formation of observed fossil stem infills. Experimental compression of the stems buried in the flume indicated the effect of an infill on the eventual form of the fossil. Examination of plant compression fossils in the present investigation has been mainly based on a study of vertical sections through the matrix. These reveal the overall structure of the compression, and the processes leading to its formation. The Carboniferous plants, Cyperites, Alethopteris, Lepidostrobus and Trigonocarpus, have been investigated in this way. An understanding of the factors that dictate the final form of the fossil, using the techniques described above, gives new insight into the fossilisation process. This is of potential value in reconstructing plants from fossils only known in the compression state of preservation. This is illustrated with reference to Permian ovulate glossopterid fructifications from Gondwanaland. Computer modelling provides an alternative method for studying the compression process, and an account is given of a computer-based investigation of the deformation process.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Plant biology. $3 1190898
650 4 $a Paleontology. $3 668656
650 4 $a Botany. $3 599558
653 $a Plant compression fossils
655 7 $a Electronic books. $2 local $3 554714
690 $a 0309
690 $a 0418
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of London, Bedford College (United Kingdom). $b Department of Botany. $3 1469116
773 0 $t Dissertations Abstracts International $g 78-11C.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10098497 $z click for full text (PQDT)