Chemical composition and origin of fossil resins from Utah Wasatch Plateau coal

Meuzelaar, Henk L. C.; Huai, Huaying; Lo, R.; Dworzański, Jacek P.

doi:10.1016/0378-3820(91)90044-d

Cited by 20 publications

(9 citation statements)

References 7 publications

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“…The range of colours exhibited by amber from a single deposit have been variably interpreted and may represent: (a) differences in depositional and post-depositional weathering or oxidation [ 83 , 84 ], or (b) difference in the types and abundances of occluded materials [ 84 , 85 ]. Additionally, Girard et al [ 30 ] noted that certain types of pseudo-protists appear to be associated with specific colours of Charentes amber and used this information to infer depositional environments.…”

Section: Interpretation Of Inclusion Typesmentioning

confidence: 99%

The Range of Bioinclusions and Pseudoinclusions Preserved in a New Turonian (~90 Ma) Amber Occurrence from Southern Australia

et al. 2015

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A new Turonian amber occurrence, representing the oldest in situ amber locality in Australia and the southern-most locality in Gondwana, has recently been discovered in the Otway Basin of Victoria. The amber was collected from petroleum cores and many pieces contain a range of inclusions that can provide information on the depositional history of the resin. To date, one species of fern spore (Cyathidites minor) and one species of lycophyte spore (Kraeuselisporites sp?) have been conclusively identified in the amber, along with filamentous microorganisms and degraded plant matter. Several samples are also rife with pseudoinclusions as reported recently in other ambers. The abundance of preserved particulate debris and wind dispersed spores suggest that the Otway amber formed subaerially. Furthermore, based on the range of bioinclusions and forms of pseudoinclusions preserved within a single piece of amber, the locus of hardening for individual samples is variably interpreted as occurring in the tree tops, on the tree trunk or on the ground surface. Notably, specific inclusion assemblages are associated with certain colours of amber. By extension, and in accordance with recent studies, amber colour may be indicative of depositional environment. Variation in the environment of solidification may, therefore, be sufficient to account for the broad range of morphological characteristics preserved in a single amber deposit.

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Section: Interpretation Of Inclusion Typesmentioning

confidence: 99%

The Range of Bioinclusions and Pseudoinclusions Preserved in a New Turonian (~90 Ma) Amber Occurrence from Southern Australia

et al. 2015

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“…Elevated concentrations of fluorenone in the wetland facies of the Fort Crittenden Formation are consistent with oxidation resulting from wetting and drying cycles. Picenes are commonly associated with Upper Cretaceous coals of inferred angiosperm origins (Meuzelaar et al, 1991) and combustion products of palaeozoic coal (Oros & Simoneit, 2000). Therefore, picene compounds in the Fort Crittenden Formation are interpreted as reflecting the presence of angiosperm, peats, or older coaly materials in the watershed.…”

Section: Ancient Wildfiresmentioning

confidence: 99%

Wildfires and seasonal aridity recorded in Late Cretaceous strata from south‐eastern Arizona, USA

Finkelstein¹,

Pratt²,

Curtin³

et al. 2005

Sedimentology

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Lithostratigraphic and organic chemostratigraphic studies of fluvial/lacustrine sediments in the Late Cretaceous Fort Crittenden Formation in south‐eastern Arizona USA, reveal changes in palaeoclimate and tectonics as well as associated fluctuations in lake level. The lower Fort Crittenden is dominated by marginal wetland to deep‐water lake deposits, whereas the upper Fort Crittenden is characterized by wetland to deltaic deposits. Abundance of polycyclic aromatic hydrocarbons (PAH) and reflectance of fusinite substantiate the impact of wildfires within the watershed. Organic geochemical evidence of wildfires is linked with sedimentological indicators of seasonal aridity suggesting that wildfires were common occurrences. Sedimentological evidence for seasonal aridity includes mottles and pseudoslickensides on ped structures within wetland mudstones. Distinct variations in PAH assemblages, characterized by the number of aromatic rings, indicate that there were variations in the intensities of wildfires, assuming no variations in the types of fuel. Fusinite reflectance values are consistent with combustion temperatures from 470 to 550 °C observed in modern wildfires.

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“…Thus, when obtaining resins from commercial dealers, it is possible to obtain "damar" in which resins are either not properly identified as to the botanical source or are from various sources that have been mixed (a practice common among local collectors) (68). Nonetheless, "damar," in some scientific articles, is used synonymously with dipterocarpaceous resins (e.g., 11,48). Furthermore, Shorea resin, most often reported to have been obtained from dealers, has been the resin most commonly compared with ambers (11,47,48); it may thus be assumed that all dipterocarps are similar to Shorea.…”

Section: General Biological Background Of Resin-producing Treesmentioning

confidence: 99%

“…Nonetheless, "damar," in some scientific articles, is used synonymously with dipterocarpaceous resins (e.g., 11,48). Furthermore, Shorea resin, most often reported to have been obtained from dealers, has been the resin most commonly compared with ambers (11,47,48); it may thus be assumed that all dipterocarps are similar to Shorea. However, it should be recognized that chemical variation in the resin occurs among the numerous genera in the Dipterocarpaceae (45,66).…”

Section: General Biological Background Of Resin-producing Treesmentioning

confidence: 99%

Biology of Amber-Producing Trees: Focus on Case Studies of Hymenaea and Agathis

Langenheim

1995

ACS Symposium Series

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Chemical composition and origin of fossil resins from Utah Wasatch Plateau coal

Cited by 20 publications

References 7 publications

The Range of Bioinclusions and Pseudoinclusions Preserved in a New Turonian (~90 Ma) Amber Occurrence from Southern Australia

The Range of Bioinclusions and Pseudoinclusions Preserved in a New Turonian (~90 Ma) Amber Occurrence from Southern Australia

Wildfires and seasonal aridity recorded in Late Cretaceous strata from south‐eastern Arizona, USA

Biology of Amber-Producing Trees: Focus on Case Studies of Hymenaea and Agathis

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