Archive for the ‘Geological Mapping’ Category

The Copper Wars of Butte and the Invention of Underground Geological Mapping

The Copper Wars of Butte and the Invention of Underground Geological Mapping

he Copper Wars of Butte and the Invention of Underground Geological Mine Mapping The Copper Wars, called by some the Battle of Butte, took place between the Anaconda Company and companies owned by Fredrick Augustus Heinze over the period 1898 to 1906. One of the significant players […]

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The definition of a geological fault and why most dictionaries get it wrong.

The definition of a geological fault and why most dictionaries get it wrong.

The definition of a geological fault, and why most dictionaries get it wrong The most important structures for any mineral explorer to understand are faults. But what exactly, is a fault? To geologists the answer seems so obvious that few of them (or even many structural geology textbooks) […]

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The movement of faults

The movement of faults

The movement of faults Faults are not mathematical planes (2D surfaces with length and depth but no thickness) but 3D tabular zones of deformed rock. The length and depth of a fault is always much greater than its thickness, but fault width can vary through many orders […]

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The purpose of science is to seek truth, not proclaim it

The purpose of science is to seek truth, not proclaim it

The purpose of Science is to seek truth, not proclaim it. “Science is an ongoing race between our inventing ways to fool ourselves and our inventing ways to avoid being fooled.”- Saul Perlmutter, Astrophysicist and Nobel Laureate. Is there such a thing as a geological fact map? […]

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Sense of movement structures in fault zones Part 3: Identification Criteria

Sense of movement structures in fault zones  Part 3: Identification Criteria

Sense of Movement Structures in Fault Zones.  Part 3: Identification criteria Within or adjacent to a fault zone, various minor structures can be present that enable the sense of movement across the fault to be determined.  These structures are often called kinematic indicators. In Part 1 of […]

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Sense Of Movement Structures in Fault Zones: Part 2: Examples

Sense Of Movement Structures in Fault Zones: Part 2: Examples

Sense of Movement  Structures in Fault Zones :  Part 2 – Examples Within or adjacent to fault zones, various minor associated structures can be present that enable the sense of movement across the fault to be determined. These structures are often called kinematic indicators. This is the […]

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Sense of movement structures – Part 1, Theory

Sense of movement structures – Part 1, Theory

Sense of movement structures in fault zones - Part 1, Theory Within or adjacent to fault zones, various minor associated structures can be present that enable the sense of movement across the fault to be determined. These structures are often called kinematic indicators. Faults are the host to […]

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Drill Hole Targeting

Drill Hole Targeting

  TARGETING DRILL HOLES It is a truism that ore bodies are rare and hard to locate. If this were not so, they would hardly be worth finding.  Explorers search for them by drilling holes into the ground.  A single drill hole produces a very small sample […]

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Making Sense of 2-D Data : Part 2 – Folds

Making Sense of 2-D Data : Part 2 – Folds

MAKING SENSE OF 2D DATA – PART 2: FOLDS This post is the second of three parts and describes the different appearances which folds can have depending on the orientation of the surface on which they are exposed. Visualising complex objects in three dimensions isn’t easy, although […]

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Making sense of 2-D Data – Part 1: Faults

Making sense of 2-D Data – Part 1: Faults

Visualising complex objects in three dimensions isn’t easy, although geologists are better at this than most. Two dimensional objects are an order of magnitude easier to comprehend. Where the object under study is complex we can gain an understanding by visualising or portraying two dimensional slices across […]

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