Reflectance anomalies in Pike River coals: Evidence of variability in vitrinite type, with implications for maturation studies and “Suggate rank”

Newman, J.; Newman, N

doi:10.1080/00288306.1982.10421412

Cited by 100 publications

(40 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dark vitrinite re flects sub-im preg na tion with resinite ma te rial or an or i gin from non-lignine ma rine plants or even par tial bitu mi ni sa tion of the plant ma te rial, e.g. in deep-sea con di tions (Newman and Newman, 1982). The sec ond peak should be re lated to collotelinite (vitrinite A).…”

Section: Variability Of Degree Of Coalification Of Plant Materials In mentioning

confidence: 99%

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

Zielińska

2016

View full text Add to dashboard Cite

Zieliñska, M., 2017. Or ganic-mat ter vitrinite reflectance vari abil ity in the Outer Carpathians, Po land: re la tion ship to tec tonic evo lu tion. Geo log i cal Quar terly, 61 (1): 214-226, doi: 10.7306/gq.1338 Ran dom vitrinite reflectance of allochthonous plant ma te rial var ies through out all the flysch sed i men tary units of the Outer West ern Carpathians. The vitrinite reflectance of coalified phytogenic mat ter is vari able even within the same lithostratigraphic unit. There is no clear re la tion ship be tween ran dom vitrinite reflectance and stra tig ra phy (age of par tic u lar strata) within sur face sam ples. The typ i cal pat tern of in creas ing ran dom reflectance with depth in bore holes is un set tled by R r o "jumps" which oc cur within folds and overthrusts. How ever, this study re vealed a trend of in creas ing ran dom vitrinite reflectance from north to south in the area of the Magura Unit. A compressional re gime in volv ing phases of up lift and burial, vary ing from place to place in the flysch ba sin, was the main fac tor in flu enc ing coalification. The ini tial ma tu rity of or ganic mat ter trans ported to the ma rine en vi ron ment was a sec ond ary fac tor. A de gree of coalification had oc curred in the flysch sed i ments prior to the main stage of fold-and-thrust move ments as so ci ated with the phase of max i mum tec tonic sub si dence at the end of the Eocene. It is gen er ally as sumed that coalified plant ma te rial dis persed in sed i men tary rocks ex pe ri enced the same phys i cal and chem i cal changes as those in larger ac cu mu la tions of coal. Coalification of phytogenic ma te rial co eval with flysch in the Outer Carpathians cor re sponds to the in ter val from sub-bi tu mi nous to low-me dium-rank bi tu mi nous coal.

show abstract

Section: Variability Of Degree Of Coalification Of Plant Materials In mentioning

confidence: 99%

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

Zielińska

2016

View full text Add to dashboard Cite

show abstract

“…Newman & Newman 1982). An increase in liptinite produces a comparable effect, as in Victorian Neogene brown coals (Suggate 1998a).…”

Section: Theoretical Consideration Of Variation In Maceral Group Contentmentioning

confidence: 99%

The Rank(S_r) scale: Its basis and its applicability as a maturity index for all coals

Suggate

2000

New Zealand Journal of Geology and Geophysics

View full text Add to dashboard Cite

A comprehensive revision of the basis of the 1959 Rank(S) scale of Suggate uses the van Krevelen diagram (axes of atomic O/C and H/C), and a complementary diagram with axes of calorific value and volatile matter, to demonstrate the progress of rank increase in coals of differing coal types. Both type and rank (maturity) are significant in hydrocarbon generation. The Late Cretaceous and Cenozoic New Zealand coals, which have an almost complete rank range from peat to semi-anthracite, are used to exemplify medium to high hydrogen coals, and Paleozoic coals from the Northern Hemisphere and Australia provide data for lower hydrogen coals. A line of progressive coalification of "average-type" coal, which typifies that of Type III kerogen, is identified. Systematic analytical variation in isorank coals allows the determination of the pattern of isorank lines on the diagrams. These lines are then spaced to provide a scale of equal increments of rank increase, which is accepted as being dependent on temperature at the time of maximum burial. The 1959 supposition that geothermal gradients did not vary widely between subsiding basins is abandoned, and in its place it is now assumed that the geothermal gradient in each basin was uniform with depth. The spacing of isorank lines to provide the Rank(S r ) scale, which ranges from 0 in peat to >20 in anthracite, follows study of individual sequences in deep coalfield boreholes and in oil exploration wells.

show abstract

“…The wide variation in vitrinite reflectance of the paralic coals of is not due to different burial histories; all samples were taken within two vertical metres. Newman & Newman (1982) and Price & Barker (1985) show that hydrogen-rich (i.e. perhydrous) vitrinite suppresses vitrinite reflectance.…”

Section: Association A3mentioning

confidence: 99%

A cretaceous ‐ early tertiary Macrotidal estuarine‐fluvial succession: Puponga coal measures in Whanganui inlet, onshore Pakawau sub‐basin, Northwest Nelson, New Zealand

Bal

Lewis

1994

New Zealand Journal of Geology and Geophysics

View full text Add to dashboard Cite

show abstract

Reflectance anomalies in Pike River coals: Evidence of variability in vitrinite type, with implications for maturation studies and “Suggate rank”

Cited by 100 publications

References 1 publication

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

The Rank(S_r) scale: Its basis and its applicability as a maturity index for all coals

A cretaceous ‐ early tertiary Macrotidal estuarine‐fluvial succession: Puponga coal measures in Whanganui inlet, onshore Pakawau sub‐basin, Northwest Nelson, New Zealand

Contact Info

Product

Resources

About

Reflectance anomalies in Pike River coals: Evidence of variability in vitrinite type, with implications for maturation studies and “Suggate rank”

Cited by 100 publications

References 1 publication

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland: relationship to tectonic evolution

The Rank(Sr) scale: Its basis and its applicability as a maturity index for all coals

A cretaceous ‐ early tertiary Macrotidal estuarine‐fluvial succession: Puponga coal measures in Whanganui inlet, onshore Pakawau sub‐basin, Northwest Nelson, New Zealand

Contact Info

Product

Resources

About

The Rank(S_r) scale: Its basis and its applicability as a maturity index for all coals