Drs. M.P.T. Chin-A-Lien, MBA, M.Sc., Ing. Geologist · Golden Lane Investments Advisory Group B.V. (GLIAG), Zoetermeer & Paramaribo · ORCID iD 0009-0007-1649-602X

How the Guiana Shield made its gold, its bauxite and the sands of the Golden Lane

In brief

Every barrel of oil in the Golden Lane sits in sand that was once a mountain on the Guiana Shield. That single sentence connects two billion years of geology to the petroleum boom of the Guyana–Suriname Basin, and this essay explains it in six acts.

Suriname’s bedrock was built in about 300 million years, between 2.26 and 1.95 billion years ago (Ga), when an ocean closed and the Guiana Shield was welded to West Africa in the Trans-Amazonian Orogeny (Kroonenberg et al., 2016). That collision made the gold of Rosebel and Merian. The mountains it raised wore down into the Roraima sandstone of the Tafelberg; tropical weathering of the shield and its coastal plain later made the bauxite of Moengo, Paranam and the Bakhuis Mountains; and in the Late Cretaceous, rivers carried the eroded shield to the deep sea, where it built the sand fans of the Golden Lane. Since the Liza-1 discovery in 2015 more than 54 discoveries have been made along that fairway (OilNOW, July 2026), and Guyana’s production passed one million barrels a day at the end of October 2026 (ExxonMobil, via Demerara Waves, 31 October 2026). In Suriname, the GranMorgu development in Block 58 reached its final investment decision on 1 October 2024 for more than 750 million barrels recoverable and first oil in 2028 (APA, 2024).

The essay is written for two readers at once: the geoscientist who wants the evidence and the sources, and the citizen of Suriname who wants to know where the country’s wealth comes from. Specialist terms are explained where they first appear, and a short glossary closes the text. Revision 1.1 corrects Version 1.0 of the same date; the changes are listed in the amendment register at the end.

1 · A map that remembers

A palimpsest is a parchment that was written on, scraped clean and written on again, so that older texts show through the newer. The geological map of Suriname is exactly that. Its rocks were not laid down in one go: an ocean floor, an island arc, a mountain belt, a rift, a volcanic plateau, a sandstone sea, an Atlantic margin each left a layer of writing, and each later event partly erased, folded or melted the one before. What the map shows today is all of these texts at once, crushed together side by side.

Read from north-east to south-west, the onshore map shows five domains (Kroonenberg et al., 2016). In the north-east lies the Marowijne Greenstone Belt, metamorphosed ocean-floor basalts and island-arc volcanics with deep-sea and river sediments, domed by tonalite intrusions. In the south-east spread the Older granites, the partly melted roots of that belt. In the north-west and south-west run two belts of rock that formed hot and deep, the Bakhuis Granulite Belt and the Coeroeni Gneiss Belt. The centre and west are covered by Younger granites and Dalbana volcanics. On top of all this sits the flat Tafelberg sandstone, and across everything run dark lines of dolerite dykes. To the north, the young coastal plain steps down to the sea, and beyond it the continental shelf and slope fall away to the deep Guiana Basin, where the Golden Lane lies.

Two numbers set the scale. The map’s outlines still come from the 1977 Geological Map of Suriname at 1:500,000, built on more than 100,000 rock samples, over 900 drill cores totalling more than 44 km and more than 300 age determinations; the 2016 revision kept those outlines but replaced the ages with almost 50 modern zircon dates (Kroonenberg et al., 2016). The map is old; its reading is new.

2 · Deep time in six acts

The six acts below follow the six paintings around the poster. For each act the essay asks three questions: what happened, which rocks on the map it made, and which mineral wealth it left behind. A hint for the non-specialist: Ga means billions of years ago, Ma millions of years ago.

Act I · Ocean floor, subduction and the island arc (2.18–2.13 Ga)

Two billion years ago an ocean separated the old continental cores of Amazonia from those of West Africa. Its floor survives as the pillow basalts of the Paramaka Formation, seen at Poederberg and in the Rosebel mine, with the low-potassium chemistry of an ocean floor, probably behind an island arc. When the plates converged, the ocean floor dived southward beneath an arc of volcanoes. Between 2,156 and 2,137 Ma those volcanoes erupted andesite to rhyolite, and from about 2.18 Ga bodies of tonalite, trondhjemite and granodiorite (TTG) rose like hot-air balloons through the crust, doming it into the oval shapes still visible from space (Kroonenberg et al., 2016).

What it left on the map: the Paramaka metabasalts and the Kabel Tonalite domes of the north-east. What it left in the ground: the volcanic pile and its chemical sediments carry banded iron formation (itabirite) and manganese-rich quartzites (gondites, as at Lada Soela), and small ultramafic intrusions with chromite (Kroonenberg et al., 2016). Most importantly, it built the rocks that would later host gold.

Act II · Collision, folding and gold (2.13–2.06 Ga)

Parts of the arc emerged and were eroded. After 2,127 Ma, underwater avalanches of sand and mud, turbidity currents, deposited the graded beds of the Armina Formation, beautifully exposed at the Armina Falls on the Marowijne River. Uplift and weathering followed, then rivers laid down the cross-bedded, magnetite-rich sands of the Rosebel Formation in basins opened by sideways (sinistral) shearing after 2,115 Ma. The collision folded all of this tightly; in the deep crust it melted into the Gran Rio and Pikien Rio granites at about 2.10–2.09 Ga (Kroonenberg et al., 2016).

This is where Suriname’s gold was made. A late switch to dextral shearing at about 2.07–2.06 Ga opened most of the gold-bearing quartz veins of the Rosebel mine (Daoust et al., 2011, in Kroonenberg et al., 2016). Gold in Suriname is essentially restricted to the Marowijne Greenstone Belt and its three formations (Kioe-A-Sen et al., 2016). The deposits are orogenic: gold carried by hot fluids squeezed out of the crust during deformation and dropped in veins along shear zones. At Rosebel, operated by Zijin Mining (95%) with the Government of Suriname (5%), mineralisation sits in quartz-carbonate veins on both flanks of a volcanic anticline overlain by Rosebel and Armina sediments (Mining Data Online, Rosebel). At Merian, owned 75% by Newmont and 25% by Staatsolie, gold sits in quartz veins and breccias in Armina siltstones and sandstones along the axis of the Merian antiform (Mining Data Online, Merian). In 2014 Rosebel’s proven and probable reserves were estimated at 8.6 million ounces and Merian’s at about 4.2 million ounces (Kioe-A-Sen et al., 2016, after Iamgold and Newmont, 2014); current company reserve statements differ and should be read at source. The newly described Overman deposit near Rosebel shows that turbidite-hosted gold follows a crustal-scale shear corridor, much like the giant Ashanti belt of Ghana across the Atlantic (Kioe-A-Sen et al., 2025). In 2013 Suriname produced an estimated 807,500 ounces of gold, about 46% from Rosebel and the rest from small-scale miners (Kioe-A-Sen et al., 2016).

Two further treasures belong to this act. The two-mica Patamacca granites that intruded the Armina turbidites carry pegmatites with amblygonite (lithium), cassiterite (tin), tantalite and beryl (Kroonenberg et al., 2016). And the Ashanti comparison is more than a figure of speech: in pre-drift reconstructions the Guiana Shield lines up with the Man shield of West Africa, so Suriname’s greenstone belt and Ghana’s formed in the same Trans-Amazonian–Eburnean collision (Nomade et al., 2003, in Kroonenberg et al., 2016).

Act III · Rift, plume and furnace (2.07–2.05 Ga)

The Bakhuis Granulite Belt, 100 km long and 40 km wide, is the most extraordinary rock body in the country. Its rocks were cooked at 950–1050 °C and 8½–9 kilobars, conditions recorded by sapphirine with quartz and orthopyroxene with sillimanite; a new mineral, surinamite, was first described here (De Roever et al., 1976). Zircon dating puts the peak at 2.07–2.05 Ga. Because the rocks were heated first and squeezed later, an unusual path, Kroonenberg et al. (2016) favour a rising mantle plume where the Bakhuis, Coeroeni and Kanuku belts meet, opening a three-armed rift that was filled and then baked from below. A rival model by Fraga et al. (2009) reads the Coeroeni belt as an active continental margin instead; the 2016 paper presents both.

Mineral legacy: granulites weather into thick, iron-rich soils. The Bakhuis bauxite deposit, one of Suriname’s plateau bauxites, formed on these high-grade pyroxene amphibolites and gneissic granulites, with gibbsite as the main aluminium mineral; the plateau deposits of Bakhuis, Nassau, Lely and Brownsberg average 33–49 wt% Al₂O₃ (Monsels, 2016; Monsels & Van Bergen, 2017).

Act IV · The felsic flare-up (1.99–1.95 Ga)

Around 1.99–1.98 Ga the western half of Suriname caught fire. Glowing avalanches of volcanic ash, ignimbrites, buried the land as the Dalbana Formation, with flattened pumice still visible in the rock; their roots crystallised as Sipaliwini leucogranites, and deeper the great Wonotobo granite batholiths filled the crust (Kroonenberg et al., 2016). Paleomagnetism shows that by 2,000–1,980 Ma the Amazonian and West African cratons moved as one: the collision was complete (Bispo-Santos et al., 2014, in Kroonenberg et al., 2016).

Mineral legacy: the numerous small Lucie gabbro bodies, recognisable as butterfly-shaped magnetic anomalies, were drilled for copper, nickel and chromium (Kroonenberg et al., 2016). And the vast granite terrain of the west became, nearly two billion years later, part of the grain factory that fed the rivers of the Cretaceous.

Act V · Roraima, the Tafelberg and the quiet craton (1.87–1.0 Ga)

When the Trans-Amazonian mountains wore down, their debris filled a vast basin. The Roraima Supergroup, up to 3,000 m of sandstone and conglomerate, still covers more than 73,000 km² in Venezuela, Guyana and Brazil; its detrital zircons of 2,171–1,958 Ma and its paleocurrents from the north show that it is the eroded Trans-Amazonian mountain belt itself (Santos et al., 2003, in Kroonenberg et al., 2016). Ash beds in Brazil date it at 1,873 ± 3 Ma. The Tafelberg, 1,026 m high, preserves about 700 m of it in Suriname. Around 1,794.5 ± 1.6 Ma the Avanavero dolerites intruded as dykes and sills across 300,000 km², a Large Igneous Province (Reis et al., 2013, in Kroonenberg et al., 2016); about 1.50 Ga the Käyser alkali dykes followed, and between 1.2 and 1.0 Ga the Grenvillian collision with Laurentia sheared the west, accompanied by alkaline magmatism of the Muri complex, with its possible carbonatite and niobium- and rare-earth-rich laterite.

Why this act matters for oil: Roraima sandstone is almost pure quartz, the most durable mineral in nature. Each time it is eroded, its grains survive to be deposited again. The author’s essay Guyana’s Petroleum Renaissance: A Geological Odyssey first framed the Golden Lane reservoirs as sediments recycled from the eroded Roraima table mountains, carried through river and canyon systems such as the Berbice Canyon. Act VI follows those grains to the sea.

Act VI · The Atlantic opens and the Golden Lane is born (~200 Ma to today)

After more than 800 million years with no rock record at all, Suriname woke up at about 198–196 Ma, when north–south Apatoe dolerite dykes intruded the shield as part of the Central Atlantic Magmatic Province, the volcanic signal of Pangaea breaking apart (Nomade et al., 2000, 2007, in Kroonenberg et al., 2016). The Guiana Basin originated in the Late Jurassic–Early Cretaceous as the Atlantic opened (Wong, 1986). Two oil-prone marine source intervals, Aptian–Lower Albian and Upper Albian–Coniacian, then accumulated offshore; burial cooked them into oil (Shipper, Mann & Pepper, GEO ExPro, 2026).

What it left on land: the coastal plain and its bauxite. During a long Late Eocene to Oligocene pause in deposition, the “bauxite hiatus”, intense tropical weathering turned the upper part of the kaolin-rich Onverdacht Formation into bauxite at Moengo, Onverdacht–Paranam and Lelydorp (Monsels, 2016). The Moengo bauxite hills were discovered in 1915, the Paranam processing plant opened in 1941, and for most of the twentieth century Suriname ranked among the world’s leading producers of bauxite and alumina. Onshore, the same margin holds the Tambaredjo heavy-oil fields, where Staatsolie has drilled about 3,800 production wells averaging some 350 m depth since production began in 1982 (Staatsolie GeoAtlas, 2025), the subject of the author’s Tambaredjo-II essay.

3 · A treasure map: the mineral systems formation by formation

The table links each map unit to its mineral wealth. It shows a simple rule: each phase of the palimpsest has its own treasure, and the treasure sits in the rocks that phase made.

Sources: Kroonenberg et al. (2016); Kioe-A-Sen et al. (2016, 2025); Monsels (2016); Monsels & Van Bergen (2017); Bassoo et al. (2021) for Guyana’s diamonds; APA (2024); the author’s Critical Raw Materials essay for the critical-minerals perspective.

4 · From mountains to the deep sea: how the shield became the Golden Lane

Most grains of sand in a Golden Lane reservoir were born on the Guiana Shield. Many were born in a Trans-Amazonian granite, some passed through the Roraima sandstone, and rivers draining the shield carried them to the sea.

Geologists call this the source-to-sink system: the source is the eroding hinterland, the sink is the basin where the sediment comes to rest. For the Golden Lane, three lines of evidence, of unequal strength, bear on the source. Together they make the Guiana Shield the most likely main source of the Late Cretaceous sands, but none of them yet samples those sands directly.

First, the rocks themselves. The basement of Suriname and its neighbours is overwhelmingly Trans-Amazonian granite, gneiss and quartzite, with the quartz-rich Roraima sandstone on top. Weathering in a tropical climate dissolves feldspar and mica but leaves quartz behind, so the sand delivered to the coast is mature and quartz-rich, the best possible starting material for a reservoir.

Second, the zircons and the clays. The two provenance studies point in different directions, and the difference matters. Detrital zircons dredged from Early Cretaceous syn-rift sandstones on the Demerara Plateau are dominated by Pan-African–Brasiliano ages of 600–700 Ma (53% of the dated grains), with only a subordinate Trans-Amazonian mode at 2.0–2.5 Ga; the authors trace them to basement under the French Guiana margin and the eastern Demerara Plateau, funnelled through the Cacipore graben, rather than to the Guiana Shield (Girault et al., 2023). That result applies to the Early Cretaceous rift sediments, not to the Late Cretaceous Golden Lane fans. For the younger section, clay geochemistry from the Arapaima-1 well tracks the Cretaceous–Paleocene erosion of the Guiana Shield into the Guyana–Suriname Basin (Roddaz et al., 2021). On the Roraima side, detrital zircons of 2,171–1,958 Ma show that the Roraima sandstone is itself made of eroded Trans-Amazonian rock (Santos et al., 2003, in Kroonenberg et al., 2016), so every Roraima grain that reaches the Golden Lane has passed through at least two sedimentary cycles.

Third, the plumbing. Casson et al. (2021) evaluated the segmented post-rift architecture of the Guyanas margin and illustrated a single dominant Santonian sand source from the Berbice. The Berbice drainage was initiated in the Late Albian, cut the Berbice Canyon in the Coniacian, and filled it with some 2,000 m of sediment (Cameron, GEO ExPro, 2024). On the Suriname side, the author’s source-to-sink model in The Golden Lane Revealed places a second, ancestral Coppename River feeder, entering the shelf where Paleoproterozoic shear zones of the shield steered the drainage, and building the Santonian–Maastrichtian fans now proven in Blocks 58 and 52.

The result is a closed loop that the poster draws as gold arrows. The Trans-Amazonian Orogeny made the granites; erosion made the Roraima sandstone; the Atlantic opened a basin; Late Cretaceous rivers carried both, granite grains and recycled Roraima quartz, across the shelf and down canyons; turbidity currents spread them into fans on the slope; and the marine source rocks beneath and beside those fans filled them with oil. The ancient shear zones that guided gold-bearing fluids two billion years ago helped guide the rivers that built the oil reservoirs. The basement grain controls the basin. GLIAG judgement: this continuity of structure from shield to slope is the single most useful idea for exploring the next segment of the fairway, and it should be tested with provenance data from the reservoirs themselves.

5 · The Golden Lane today: the petroleum boom of the Guyana–Suriname Basin

The author first named the Golden Lane in 2008, while working with Staatsolie on Suriname’s production sharing contracts and offshore promotion, for the deep-water turbidite fairway of the Guyana–Suriname Basin. Seven years later the concept was drilled.

Guyana. ExxonMobil’s Liza-1 discovery of May 2015 found light oil in stacked Middle to Upper Cretaceous clastic reservoirs and opened the deep-water play (Staatsolie, SHO licence round synopsis). Since then more than 54 discoveries have built the Golden Lane (OilNOW, July 2026), and production, which passed 900,000 barrels per day in 2026, exceeded one million barrels per day at the end of October 2026 (Demerara Waves, 31 October 2026). The trend has been described as about 250 km long and 50 km wide, a stratigraphically trapped, multi-channel play running north-west to south-east from Guyana into Suriname (Hodgson, Rodriguez & Found, GEO ExPro, 2026). The author’s essays The Golden Lane, Guyana: From Deep-Water Turbidite Petroleum Systems to FPSO-Driven National Revenue and Golden Lane: Kitchen and Receiver of ACT Charge trace how this geology became a development model.

Suriname. In Block 58, TotalEnergies (operator, 50%) and APA (50%) took the final investment decision on GranMorgu on 1 October 2024: the Sapakara and Krabdagu fields, more than 750 million barrels recoverable, in 100–1,000 m of water about 150 km offshore, through a 220,000 barrels-per-day FPSO, at an estimated cost of USD 10.5 billion, with first oil in 2028 (APA, 2024). Staatsolie may participate with up to 20% (The Energy Year, 2024). In Block 52, Petronas has made a series of discoveries along the Golden Lane and continues to drill (Rigzone, July 2026).

Why Suriname is not simply Guyana. A 2026 basin-modelling study finds that the source rocks under central and south-eastern Guyana reached higher temperatures, which explains part of Guyana’s run of success, while recent Suriname wells have been uneven; it also finds that the older Aptian source extends farther into offshore Suriname and may charge targets beyond the established trend (Shipper, Mann & Pepper, GEO ExPro, 2026). A separate GEO ExPro analysis proposes a “NW Sub-Basin” on the far side of a basement ridge as a possible Golden Lane extension (Hodgson et al., GEO ExPro, 2026). Both arguments are, at heart, about the palimpsest: where the old structures of the shield continue under the margin, and where the sand from the shield went.

The crude itself carries its geological birth certificate: light, sweet, low in metals, the signature of a clay-rich, oil-prone marine source, as discussed in the author’s Golden Lane™ Crude essay; and the question of whether the source rocks can themselves become reservoirs is explored in ACT Hybrid Playbook: Frack or Not?.

6 · What the palimpsest teaches

First, wealth follows phases. Gold belongs to Acts I and II and lives in the greenstone belt; plateau bauxite belongs to the granulites of Act III and the Cenozoic weathering that attacked them; coastal bauxite and heavy oil belong to the young coastal plain; and the light oil of the Golden Lane belongs to the Atlantic margin of Act VI, made of sand from the earlier acts. A geological map is therefore also an economic map.

Second, old structures keep working. North-east to south-west lineaments formed in the Paleoproterozoic were reused as Grenvillian shear zones, then as Mesozoic faults of the Bakhuis horst, which still offset Cenozoic strata; Paleoproterozoic shear zones steered both gold-bearing fluids and Cretaceous rivers. Exploration models for gold and for oil should be built on the same structural map.

Third, the oldest data are still the best data. Suriname’s map outlines date from the 1970s, its greenstone belt is dated mostly by analogy with French Guiana, and at the time of the 2016 revision no modern national aerogeophysical survey existed (Kroonenberg et al., 2016). A national airborne magnetic and radiometric survey, followed by systematic zircon dating onshore and provenance work on offshore cores, would serve gold, bauxite and petroleum at once.

Evidence register

FACT

Trans-Amazonian phases at 2.18–2.09, 2.07–2.05 and 1.99–1.95 Ga from almost 50 zircon ages (Kroonenberg et al., 2016). Gold restricted to the Marowijne Greenstone Belt; 807,500 oz national production in 2013 (Kioe-A-Sen et al., 2016). Bauxite formed in the Late Cretaceous–Early Tertiary on coastal sediments and plateau basement; bauxite hiatus Late Eocene–Oligocene (Monsels, 2016). Early Cretaceous detrital zircons on the Demerara Plateau are mostly Pan-African–Brasiliano (600–700 Ma) and sourced from the French Guiana margin, with a subordinate Trans-Amazonian mode (Girault et al., 2023); Arapaima-1 clays record Cretaceous–Paleocene erosion of the Guiana Shield (Roddaz et al., 2021). Golden Lane: more than 54 discoveries since 2015 (OilNOW, 2026); Guyana above one million b/d from late October 2026 (Demerara Waves, 2026). GranMorgu FID 1 October 2024, more than 750 MMbbl, first oil 2028 (APA, 2024).

MISSING

No published detrital-zircon study of the Upper Cretaceous Golden Lane reservoirs themselves; the shield-and-Roraima link rests on provenance logic, clay geochemistry and drainage reconstruction. The only zircon data near the margin (Demerara Plateau, Early Cretaceous) point mainly to a Pan-African source, so a non-shield contribution to the Golden Lane sands cannot be excluded. Exact proportions of Berbice- versus Coppename-derived sand are not published. Offshore bathymetry in Figure 1 is schematic. Several primary sources are cited through Kroonenberg et al. (2016).

GLIAG JUDGEMENT

The Guiana Shield is most likely the dominant source of the Late Cretaceous Golden Lane sands, with recycled Roraima quartz an important fraction; this is a working hypothesis, not a measured result. Basement structure that controlled Paleoproterozoic gold also appears to have controlled Cretaceous sediment entry points; mapping one improves the prediction of the other.

TRIGGER

Detrital-zircon or heavy-mineral data from Golden Lane cores; a national aerogeophysical survey; GranMorgu production performance from 2028; drilling results beyond the established trend in Suriname.

Glossary for the non-specialist

Craton: an old, stable core of a continent; the Guiana Shield is part of the Amazonian Craton.

Greenstone belt: a belt of altered ocean-floor and island-arc volcanic rocks, green from the minerals chlorite and epidote; the world’s classic home of gold.

Granulite: rock metamorphosed at extreme temperature deep in the crust.

Ignimbrite: rock formed from a glowing avalanche of volcanic ash and pumice.

Orogeny: a mountain-building episode, usually caused by colliding plates.

Provenance: the origin of a sediment, read from the ages and chemistry of its grains.

Turbidite: a bed of sand or mud laid down by an underwater avalanche; the reservoirs of the Golden Lane are turbidites.

Source-to-sink: the whole path of sediment from the eroding hinterland (source) to the basin where it settles (sink).

Source rock: an organic-rich mudstone that generates oil and gas when buried and heated.

FPSO: Floating Production, Storage and Offloading vessel, the floating plant that produces deep-water oil.

The author’s related essays

The Golden Lane Revealed: Why Santonian–Maastrichtian Submarine Fans Made Suriname a World-Class Deep-Water Province (source-to-sink model)

Guyana’s Petroleum Renaissance: A Geological Odyssey (Roraima recycling, Berbice Canyon)

Golden Lane: Kitchen and Receiver of ACT Charge

The Golden Lane, Guyana: From Deep-Water Turbidite Petroleum Systems to FPSO-Driven National Revenue

Golden Lane™ Crude: A Game Changer for Caribbean Refineries

ACT Hybrid Playbook: Frack or Not? Evaluating Offshore Hybrid Potential in the GSB

Tambaredjo-II: The Next Big Discovery in Oil

Critical Raw Materials: Suriname’s Onshore and Offshore Potential

Petroleum & Energy Insights: all GLIAG essays

The Making of Suriname (GLIAG-ESS-2026-SUR-GEO-01), companion essay with Figures 2–9: forthcoming.

References

All links accessed 7 November 2026. Full credit to the authors and publishers listed; figures redrawn from CC BY 4.0 sources are attributed in their captions.

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The Energy Year (1 October 2024). TotalEnergies reaches $10.5-billion FID in Suriname. Link

Wong, T.E. (1986). Outline of the stratigraphy and the geological history of the Suriname coastal plain. Geologie en Mijnbouw 65: 223–241. Link

Cited through Kroonenberg et al. (2016), whose reference list gives full details: Bisschops (1969); Daoust et al. (2011); De Roever et al. (1976, 2003); Delor et al. (2003a, b); Fraga et al. (2009); Klaver et al. (2015, 2016); Naipal & Kroonenberg (2016); Nomade et al. (2000, 2003, 2007); Reis et al. (2013); Santos et al. (2003); Veenstra (1983). Link

Amendment register

About the author

Drs. M.P.T. Chin-A-Lien, MBA, M.Sc., Ing. Geologist. Certified Petroleum Geologist Nr. 5201-1996 (AAPG) · Chartered European Geologist Nr. 92-1996 (EFG) · Energy Negotiator, June 2021 (AIEN). Principal Founding Partner & Chief Architect, Golden Lane Investments Advisory Group B.V. (GLIAG), Zoetermeer & Paramaribo · petroleumenergyinsights.com · ORCID 0009-0007-1649-602X. Petroleum and energy adviser with nearly five decades of international experience; co-discoverer of the Ceuta field in Lake Maracaibo; originator of the term Golden Lane for the Guyana–Suriname Basin (2008); consultant to Staatsolie in 2008–2010.

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3. Independence of analysis. The analysis is the author’s own, based on the public sources cited. GLIAG is not a sponsor, bidder or equity holder in any project mentioned. Company figures are quoted from the companies’ own releases.

4. Forward-looking statements. Statements about future production, first oil, exploration success or surveys are judgements subject to uncertainty and may not come true.

Copyright, licence and intellectual property. © 2026 Marcel P.T. Chin-A-Lien and GLIAG (Golden Lane Investments Advisory Group B.V.). This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International licence (CC BY-NC-ND 4.0), creativecommons.org/licenses/by-nc-nd/4.0. Golden Lane™ and GLIAGOGRAPH™ are GLIAG trademarks. Cite as: Chin-A-Lien, M.P.T. (2026). Suriname: a Palimpsest of Two Billion Years. GLIAG, GLIAG-ESS-2026-SUR-GEO-02, Revision 1.1. Zenodo. https://doi.org/10.5281/zenodo.24045211. Web edition: petroleumenergyinsights.com. Material from Kroonenberg et al. (2016) is used under CC BY 4.0 with attribution. Under Article 4(3) of Directive (EU) 2019/790 and Article 15o of the Dutch Auteurswet, the rightsholder expressly reserves this work from text and data mining, including the training of artificial-intelligence models, without prior written permission.

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