The literature

Every source behind the coal article, with what each one says, how it was obtained, and which way it cuts: peat accumulation rates, seam extent and purity, the Joggins and Fossil Grove forests, the tonstein ash beds, the coal inventory and biosphere ceiling, the Cenozoic giants, and the creationist floating-forest dispute.

This page exists so that nobody has to take the rest of the article on trust.  Every source it rests on is listed here with what it actually says, how it was obtained, and which way it cuts.

The article's working notes, with verbatim quotations, access routes and page anchors for every entry below, are in three research dossiers beside it:  research/formation.md, research/in-situ-vs-transported.md and research/budget-and-age-distribution.md.  A fourth, research/gap-closure.md, records the attempt to obtain the sources listed at the bottom of this page.  This page is the index to them.

How to read an entry

Direction is judged relative to the young-earth claim that the world's coal seams are vegetation torn up and buried during the one-year Flood:  supports, undercuts, mixed or background.  It is assigned by what the source shows, not by who wrote it.  Several creationist sources below are tagged undercuts because their own data or concessions cut against the claim, and one mainstream review is tagged mixed because it concedes the creationist premise about ordinary swamps.

Camp is disclosure:  mainstream, creationist, or unaffiliated.

Type says whether the source measured something, modelled it, or reviewed others' work.  A radiocarbon-dated peat core is a measurement.  A compaction ratio is a model output.  A textbook statement is a review.

Access says how the bytes were obtained.  Several sources were read through archive.org's search-inside route on print-disabled items and are not stored in the library;  the footnotes say so. Rows not cited in the article were read and considered;  where a row's source is not footnoted in index.md, it was judged background or duplicative and not used, and it is listed here so that the omission is visible.

Peat, mires and coal formation

Source Type Camp Access Direction What it says
Darwin 1845, Journal of Researches, p. 287 field note unaffiliated public domain (Darwin Online, Gutenberg) undercuts creationist use Peat is abundant in the Southern Cone and absent at Chiloé and La Plata. Says nothing about the tropics.
Supardi, Subekty & Neuzil 1993, GSA SP 286:45–61 measurement mainstream archive.org print-disabled search undercuts Riau peat 48,000 km²; 10 m in 4,470 yr; 4–5 mm/yr early, 1–2 mm/yr later.
Neuzil et al. 1993, GSA SP 286:23–44 measurement mainstream archive.org print-disabled search undercuts Ninety-three samples from three Indonesian domes: 1.1% ash, 0.14% sulfur.
Cecil et al. 1993, GSA SP 286:3–22 review mainstream archive.org print-disabled search undercuts, with a concession Lower and lower Middle Pennsylvanian coals match the Indonesian domes; later Pennsylvanian coals do not.
Dommain, Couwenberg & Joosten 2011, QSR 30:999 measurement mainstream Greifswald dissertation reprint undercuts Thirty-one dated cores: Holocene means 0.54–1.89 mm/yr; maximum 4.5 mm/yr for ~700 yr.
Dommain et al. 2010, Mires and Peat 6:05 review mainstream open access background Domed peat covers <1% of the humid tropics; predicted Congo domes, confirmed 2017.
Dargie et al. 2017, Nature 542:86 measurement mainstream White Rose accepted manuscript undercuts Congo peatland 145,500 km²; max 5.9 m; 0.21 mm/yr; Holocene.
Kremenetski et al. 2003, QSR 22:703 compilation mainstream author copy undercuts West Siberian Lowland >900,000 km² of peatland, mean 2.56 m.
McCabe 1984, IAS Spec. Publ. 7:13 review mainstream summary only mixed Ordinary swamps make dirty peat; raised or floating mires make clean peat.
Cecil 1990, Geology 18:533 model mainstream abstract only background Ever-wet climate starves rivers of sediment, so peat stays clean.
Cameron, Esterle & Palmer 1989, IJCG 12:105 measurement mainstream abstract only background Most studied peats are domed; domes as models for coal.
Thomas 2013, Coal Geology, 2nd ed. textbook mainstream archive.org open OCR undercuts creationist use The "no one model" sentence on p. 3 in context; 10:1 compaction and 5–10 kyr/m on p. 13; 100–150 °C for bituminous rank on p. 110.
DiMichele & Phillips 1994, Palaeo3 106:39 review mainstream abstract only background Coal-swamp trees were mostly parenchyma; re-rooting separates plant parts.
Greb, Eble & Hower 1999, IJCG 40:255 measurement mainstream abstract only undercuts, with a concession Fire Clay: 3,800 thickness points; ash fell on a drowned mire; upper bench domed.

Seam extent, thickness and the ash beds

Source Type Camp Access Direction What it says
Tewalt et al. 2001, USGS PP 1625-C resource model mainstream public domain PDF background Pittsburgh bed >5,000 mi²; horizon 11,000 mi²; 6–8 ft where thick.
USGS Fact Sheet 004-02 summary mainstream public domain background Fire Clay zone ~5,500 mi²; Pittsburgh 9.02% ash, Fire Clay 10.62%.
Outerbridge 2003, USGS OFR 03-351 measurement mainstream public domain PDF undercuts Fire Clay tonstein 37,000 km², 3.7 km³ preserved, 6:1 ash compaction.
Lyons et al. 1992, GSA Bull. 104:1515 measurement mainstream abstract only undercuts Tonstein mineralogy, graded cycles, no detrital quartz, 312 ± 1 Ma.
Bohor & Triplehorn 1993, GSA SP 285 review mainstream archive.org print-disabled search; leaf offset not pinned background Tonsteins are thin, continuous, sharp-contacted fallout in low-energy settings.
Schmitz & Davydov 2012, GSA Bull. 124:549 measurement + model mainstream abstract only undercuts via brackets Twenty-eight ash-bed ages; cyclothems tuned to 404 kyr inside a 0.1 Myr framework.
Flores 2004, USGS PP 1625-A ch. PS measurement mainstream public domain PDF undercuts K-Pg school Big George 46–202 ft over 950 mi²; zone to 550 ft; Sumatran dome drawn as analogue; thick-coal origin "controversial."
Luppens et al. 2008, USGS OFR 2008-1202 measurement mainstream public domain PDF undercuts K-Pg school Gillette coalfield 201 billion short tons original resource.
Bioregional Assessments, Gippsland brown coal government summary mainstream open web undercuts K-Pg school Yallourn ~100 m; Morwell 1 to 165 m; Loy Yang composite 230 m.
Nadon 1998, Geology 26:727 measurement mainstream archive.org microfilm search-inside (not stored) mixed Burial compaction "minimal"; 1.2:1 to 2.2:1 "more realistic"; 10:1 levees "run uphill"; no global decompaction value.
Ryer & Langer 1980, JSP 50:987 measurement mainstream archive.org microfilm search-inside (not stored) background Measured 11.3:1 ("considered accurate") for near-surface peat; 7:1 is its Table 1 median of earlier estimates, one of which is 10:1; the text never adopts 10:1. Thomas's 10:1 and SP 286's 7:1 both cite the compilation, not the measurement.
Large et al. 2021, JGR Earth Surface 126 model mainstream open access undercuts 1 m bituminous ≈ 100 kyr; thick seams 0.1–1 Myr; Duckmantian–Langsettian 0.7–1.5 Myr.
Large & Marshall 2015, GSL SP 404:303 model mainstream abstract only undercuts The volumetric approach "fails to take into account processes of carbon accumulation and loss"; the carbon-accumulation method for seam duration.

Coalification chemistry

Source Type Camp Access Direction What it says
Hayatsu et al. 1984, Org. Geochem. 6:463 laboratory measurement mainstream abstract only supports (chemistry only) Lignin + clay at 150 °C for 2–8 months resembles low-rank coal.
Orem et al. 1996, Org. Geochem. 24:111 laboratory measurement mainstream abstract only supports (chemistry only) Peat at 125 °C for 75 days resembles Miocene coal.
Barker & Pawlewicz 1986 regression mainstream abstract only; coefficient scraped wrongly mixed Reflectance tracks peak temperature, calibrated on basins held 10⁵–10⁷ yr.
Burnham & Sweeney 1989, GCA 53:2649; Sweeney & Burnham 1990 kinetic model mainstream abstract only; EASY%Ro table not obtained mixed Arrhenius kinetics for vitrinite; the article prints no temperatures from the unverified solver.

The rooted forests and the transport question

Source Type Camp Access Direction What it says
Dawson 1868, Acadian Geology, 2nd ed. field log unaffiliated (19th c.) public domain, archive.org undercuts Underclays under nearly every Joggins coal; trees "rooted in the roof of this coal"; thirteen forest surfaces in two subdivisions.
Davies et al. 2005, Atlantic Geology 41:115 measurement mainstream open access undercuts Forty-five coal groups, 11.5 m coal, 915.5 m strata, 14 cycles.
Grey & Finkel 2011, Atlantic Geology 47:185 review mainstream open access background Joggins forests "preserved in situ" with tree-hollow fauna.
Lesquereux 1880, Coal Flora of Pennsylvania, p. 511 field observation unaffiliated (19th c.) public domain, archive.org undercuts creationist use The fireclay Stigmaria quotation, and on the same page the statement that they lie as they grew.
Hetherington, Berry & Dolan 2016, PNAS 113:6695 measurement mainstream open access (Europe PMC) undercuts 25,600 root-haired rootlets per metre; branching in coal-ball peat in situ.
Zatoń, Mundy & Vinn 2020, J. Paleont. 94:1051 review statement mainstream open access (Cambridge, CC-BY) undercuts Carboniferous "Spirorbis" are microconchids, marine to freshwater.
Taylor, Taylor & Cúneo 1992, Science 257:1675 measurement mainstream abstract only (OSTI) undercuts Fifteen permineralised Permian trunks in growth position at 80–85° S.
Taylor & Ryberg 2007, USGS OFR 2007-1047 measurement mainstream public domain PDF undercuts Permian glossopterid wood with up to 115 rings, 1–5 latewood cells.
Ager 1993, The New Catastrophism, p. 49 argument mainstream archive.org print-disabled search undercuts creationist use The 100,000-year calculation, followed by "equally ridiculous" and "long breaks in sedimentation."
Ager 1981, Nature of the Stratigraphical Record, p. 42 argument mainstream archive.org print-disabled search background The 38-foot Lancashire tree; the calculation is not in this edition.
Coffin 1983, Origins 10:9 field observation creationist open web supports (narrowly) Spirit Lake: nearly all erect floating stumps had root balls; some grounded upright.
Austin 1986, ICC 1:3 field observation + extrapolation creationist on disk mixed Sonar extrapolation to 15,000 upright stumps; bark peat "several inches thick."
Coffin 1997, Origins 24 field census creationist open PDF mixed Amethyst Mountain 28% upright, Roosevelt Lodge 75%; ring matching from a thesis.
Fritz 1980, Yuretich 1984, Ammons et al. 1987 (Yellowstone) measurement mainstream abstracts only background Fritz: "some logs and stumps" transported; Yuretich: "most upright tree stumps at Specimen Ridge ... were buried in place"; percentages in unread bodies.
Greb et al. 2003, GSA SP 370:127 measurement + review mainstream Wayback capture of the Smithsonian bitstream mixed; a real concession Colchester >100,000 km², Springfield 73,500–81,000, Herrin 73,900; only boreal Sphagnum bogs match in extent; decompacted 30–40 m at an assumed 10:1; cites Austin 1979.
Calder et al. 2006, GSA SP 399:169 measurement mainstream long abstract only (body paywalled; GSW, RG, OA indexes, Wayback all tried) undercuts "60 or more horizons"; trees "invariably rooted within an organic-rich substrate"; "not significantly time averaged."
Calder, Gibling & Rygel 2005, AGS SP 28 guidebook review mainstream open PDF (Dalhousie repository) undercuts Body-level burial mechanism: crevasse-splay/bay-fill sheets "several meters thick" that "entombed the standing trees"; trees to 6 m preserved height.
Calder et al. 1999, ICCP XIV abstract (NS Report of Activities 1999, p. 199) abstract mainstream open (archive.org full text) undercuts "minimally at 50 horizons"; ~5 m heterolithic units; "Sudden burial ... resulted in the demise of entire stands."
Cleal & Thomas 1995, GCR Palaeozoic Palaeobotany, pp. 188–191 review mainstream archive.org print-disabled search-inside (not stored) undercuts Fossil Grove stumps rooted in a silty mudstone Gastaldo "interpreted as a palaeosol"; distortion is "streamlining" by entombing sediment, not tectonics.
DiMichele & Falcon-Lang 2011, J. Geol. Soc. 168:585 review mainstream Wayback capture of the Smithsonian bitstream undercuts 66 Joggins forest horizons, 86% wetland; ~64 published in-place Pennsylvanian forests, "missed many."
Widera 2015, Acta Geol. Polon. 65:367 compilation mainstream open PDF mixed Compaction ratios 1.1:1 to 60:1; Pennsylvanian 3:1–20:1, coal-ball average 5:1; lignite 2:1–4:1.
Gastaldo 1984, PS Spec. Publ. 1:97; Gastaldo 1999, PS Papers 5:135; Gastaldo 1986, Scott. J. Geol. 22:77 review; measurement mainstream abstracts / synopsis only undercuts Four reasons against floating mats (1984); Fossil Grove in situ with current-moulded stumps (1986).

The creationist literature

Source Type Camp Access Direction What it says
Scheven 1996, CEN Tech. J. 10:70 model creationist open PDF (creation.com) supports Origin of the floating-forest model.
Wise 2003, ICC 5:371 model creationist Wayback capture via browser supports "perhaps subcontinent to continent-sized" floating biome proposed to explain fossil order; one sentence on roots ("do not seem as if").
Austin & Sanders 2018, ICC 8:277 history creationist on disk supports Austin's 1979 "floating mat model"; Clarey described as an advocate of it.
Sanders & Austin 2018, ICC 8:525 paleobotany argument creationist on disk supports; undercut by Hetherington Rhizomorphs "not suited" to soil; rootlets renamed "water leaves."
Clarey 2015, JoC 29(3):50 model critique creationist open PDF mixed Rejects the floating biome; forests grew on land, then were torn loose.
Clarey & Tomkins 2016, CRSQ 53(2):110 site reinterpretation creationist CRS signed download link undercuts (concedes Fossil Grove) Ten rooted stumps, roots penetrating the mudstone, "best preserved ... in situ lycopod forest."
Clarey 2017, JoC 31(3):12 argument creationist open PDF undercuts Biggest coals are Cenozoic and lycopod-free; the floating forest fails on tonnage.
Wise 2018, ARJ 11:237 reply creationist open PDF supports by criterion 5 Fossil Grove floated in because Flood rock lies beneath; site examined briefly in poor light.
Johns 2019, ARJ 12:179 review creationist open PDF mixed Criterion 5 "the most problematic"; Hindostan Whetstone beds probably in place.
Woolley 2010, 2011a, 2011b, JoC 24(3), 25(1), 25(3) history + argument creationist open PDFs supports The seven problems; Darwin, Lesquereux and Spirorbis as used.
Oard 2024, Creation magazine popular creationist open web supports; numbers do not survive 15 m peat, 10:1, 38,000 km² Kentucky No. 12 (from Austin's thesis), "eight to ten times more plants" (from Archer, misattributed).
Morris 1999, ICR Impact 316 popular creationist open web background Joggins: does not dispute rooting; argues the trees are hollow.
Snelling 2009, Earth's Catastrophic Past vol. 2 book creationist on disk undercuts "all coal" "More than 70 percent" of coal is Flood on a K-Pg boundary; Tertiary basins "local."
Whitmore & Garner 2008, ICC 6:425 criteria creationist on disk undercuts on their own boundary Boundary in the Lance or Fort Union Formation, which holds Big George.
Clarey, Werner & Tomkins 2021, JoC 35(1) argument creationist open web undercuts K-Pg school Cenozoic coals worldwide; Latrobe to 200 m; Chinese Neogene seams to 237 m.
Clarey & Werner 2023, ICC 9:413 model creationist on disk undercuts K-Pg school "The thickest and most extensive coal seams are found globally in Tejas sediments."

The carbon inventory and the biosphere ceiling

Source Type Camp Access Direction What it says
Rogner 1997, Annu. Rev. Energy Environ. 22:217 resource assessment mainstream IIASA reprint background Coal reserves 1,003 Gtoe; resource base 3,400; all occurrences 6,246.
Archer 2010, The Global Carbon Cycle textbook mainstream archive.org print-disabled search undercuts creationist use 500 GtC living land carbon; 5,000 GtC coal; nothing about a pre-Flood world.
BGR Energy Study 2023 resource assessment mainstream second hand (Leipzig page) background Coal resources ~19,700 Gt; reserves 1,118 Gt.
IPCC 2006 Guidelines vol. 2 ch. 1 default factors mainstream open PDF background Carbon per tonne by rank: 0.72, 0.67, 0.50, 0.33.
Bar-On, Phillips & Milo 2018, PNAS 115:6506 census mainstream on disk background 450 GtC of plants.
Field et al. 1998, Science 281:237 model mainstream eScholarship copy background Land NPP 56.4 GtC/yr.
Keith, Mackey & Lindenmayer 2009, PNAS 106:11635 measurement mainstream open access (PMC) undercuts Record forest 1,867 tC/ha across 13 sites; 2,844 at one.
Falkowski 2012, Fundamentals of Geobiology ch. 2 review mainstream university PDF (mislabelled online as Falkowski 2000) undercuts Kerogen 15,000,000 GtC; coal 3,510.
Bestougeff 1980, via Xie (EOLSS) Table 1 tally mainstream open sample chapter; primary not obtained; table re-assembled from a two-column PDF undercuts "Carboniferous coal" Carboniferous 24.3%, Permian 31.7%, Jurassic 16.8%, Cretaceous 13.3%, Tertiary 13.5%.
Walker 2000, IEA Coal Research CCC/32 review mainstream open extract background Three main coal periods: Carboniferous, Permian, Jurassic–Tertiary.
Woodmorappe 1986, ICC 1(2):205 model creationist Wayback capture via browser undercuts (own arithmetic) Coal from 20 m of peat over 1.27% of the earth, taking coal as 1.5 × 10¹⁹ g (15,000 GtC, three to four times mainstream inventories); his own 11.6 m no-decay ceiling; Glenn Morton's printed "close to special pleading."

Considered and not used

  • Kuntze 1895, Geogenetische Beiträge (Woolley's source for Upper Carboniferous coals being "always associated with a marine environment"). Not sought; the paralic-cyclothem literature it anticipates is closed, and the point does not bear on whether the peat grew in place.
  • The EASY%Ro solver temperatures computed in research/formation.md. Not printed, because the twenty-parameter table was typed from memory and not verified against Sweeney & Burnham 1990.
  • (Closed 2026-09-02: Nadon's 1.2:1 to 2.2:1 and Ryer & Langer's 11.3:1 are now read in full and printed.)
  • The LiveScience "fuel-making fungus" item in Eric's notes. A biofuel story about Gliocladium roseum; no creationist article uses it.

Sought and not obtained

Each of these was tried by every open route the research dossiers record, and by the gap-closure pass through the browser and the Wayback Machine (research/gap-closure.md), which is how Wise 2003, Woodmorappe 1986, Greb 2003 and DiMichele & Falcon-Lang 2011 were finally obtained.  The article prints nothing that depends on the rest without saying so.

  • Bodies (abstracts obtained) of Gastaldo 1984 and 1999, Gastaldo 1986 (Scottish Journal of Geology 22:77–83, the Fossil Grove paper behind Clarey & Tomkins 2016; the earlier citation to Palaios was wrong; its complete p. 77 synopsis is now on file and quoted), Calder et al. 2006 (the team's open 2005 guidebook and 1999 abstract now supply body-level detail), Fritz 1980, Yuretich 1984.
  • Ammons et al. 1987 (Yellowstone ring matching).
  • (Both later obtained: Ryer & Langer 1980 read in full 2026-09-02 through archive.org microfilm search-inside; Sweeney & Burnham 1990 Table 1 through the AAPG microfilm, quoted on the oil-and-gas literature page.)
  • Bestougeff 1980 primary; BGR 2023 PDF; Large & Marshall 2015; Taylor, Taylor & Cúneo 1992 full text.
  • Austin 1979, Penn State dissertation (the source of Oard's 38,000 km²).