Author name: johnkoman@msn.com

Contents Introduction What a Fold Hinge Is Why Fold Hinges Create Open Space How Fluids Move Into Fold Hinges Quartz […]

Contents Introduction Gold Needs a Chemical Trap Iron Sulfides and Invisible Gold Pyrite, Arsenopyrite, and Gold Capture Iron Oxides and

Contents Introduction What Carbonate Rock Is How Carbonate Rocks Form on the Ocean Floor The Great Age of Carbonate Platforms

Table of Contents Introduction What Mountain Building Means in Gold Geology Why Mountain Belts Create Heat, Pressure, and Deformation How

Contents The Basic Question What We Directly Observe What “Gold Injection” Really Means Why Fault Zones Move Gold-Bearing Fluids Major

Contents Introduction What Graphite Is in Gold Geology Why Carbon-Rich Rocks Matter How Gold Travels in Hydrothermal Fluids How Graphite

Contents Introduction Gold Is Not Randomly Distributed Geology Helps You Eliminate Weak Ground Local Mineral Records and BLM Research Come

Contents Introduction Gold Must First Be Mobile Before It Can Precipitate Why Organic Matter Changes Gold Chemistry Carbon-Rich Rocks as

Contents Introduction Gold and Oil Are Not Normally Mined Together Why Organic Matter Matters in Gold Geology How Gold Moves

Contents Introduction What pH Means in Gold-Bearing Fluids How Acidic and Neutral Fluids Carry Gold Sulfur, Chloride, and Gold Solubility

The Full Gold Deposits Categoryhttps://bigrivergold.com/category/gold-deposits/ Introduction Gold is commonly thought of as a metal that sits in quartz veins, nuggets,

The Full Gold Deposits Categoryhttps://bigrivergold.com/category/gold-deposits/ Introduction Gold veins are among the most recognizable geological features associated with gold mining. From

Table of Contents Gold in Bedrock Is Lode Gold Before It Becomes Placer Gold Quartz Veins Are Pathways, Not Proof

Table of Contents Introduction Discovery and the Creation of Johannesburg What the Reefs Actually Are Ancient Rivers Nearly Three Billion

Contents The Basic Question What We Directly Observe Why California Is Not an Abitibi-Style Greenstone Belt State What “Greenstone” Means

Contents The Basic Question What We Directly Observe What a Greenstone Belt Is Why Greenstone Belts Are Important for Gold

Contents The Basic Question What We Directly Observe What a Metamorphic Terrane Is Why Metamorphic Terranes Can Host Gold Orogenic

Contents The Basic Question What We Directly Observe What a Volcanic Terrane Is Why Volcanic Terranes Can Host Gold Epithermal

Table of Contents Introduction How Skarns Form Why Some Skarns Contain Gold Field Clues, Exploration Logic, and Limits The Full

Contents Introduction What a Volcanogenic Massive Sulfide Deposit Is Why Gold Is Usually a Byproduct in VMS Deposits How Seafloor

Contents Introduction What Intrusion-Related Gold Means How Intrusions Create Gold Systems Fluids, Heat, and Metal Transport Veins, Sheet Veins, Breccias,

Contents Introduction What a Porphyry Gold System Is How Magma Builds the System Hydrothermal Fluids and Metal Transport Stockwork Veins,

Contents Introduction What “Epithermal” Means How Epithermal Gold Systems Form Low-Sulfidation Epithermal Deposits High-Sulfidation Epithermal Deposits Veins, Breccias, Stockworks, and

Table of Contents Introduction What Cenozoic Means What Epithermal Gold Means Why Cenozoic Epithermal Systems Are Important Volcanism, Magmatism, and

Table of Contents Introduction: What a Cordillera Is Where the Western Cordillera Is Why the Mesozoic Era Matters for Western

Contents Introduction What “Archean” Means in Gold Geology Greenstone Belts as the Main Setting Why Archean Crust Was Favorable for

Table of Contents Introduction What the Proterozoic Eon Means Why Proterozoic Rocks Matter for Gold Proterozoic Cratons, Shields, and Basement

Table of Contents Introduction What Paleozoic Means What a Gold Belt Means Why Paleozoic Rocks Can Host Gold Paleozoic Gold