Definitions for laccolith
ˈlæk ə lɪθlac·col·ith

WiktionaryRate this definition:0.0 / 0 votes

1. laccolithnoun

   a mass of igneous or volcanic rock found within strata which forces the overlaying strata upwards and forms domes.

2. laccolithnoun

   mass similar to lopolith but concave up.

3. Etymology: λάκκος + λίθος

WikipediaRate this definition:0.0 / 0 votes

1. Laccolith

   A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying apart the host rock strata. The pressure of the magma is high enough that the overlying strata are forced upward, giving the laccolith its dome-like form. Over time, erosion can expose the solidified laccolith, which is typically more resistant to weathering than the host rock. The exposed laccolith then forms a hill or mountain. The Henry Mountains of Utah, US, are an example of a mountain range composed of exposed laccoliths. It was here that geologist Grove Karl Gilbert carried out pioneering field work on this type of intrusion. Laccolith mountains have since been identified in many other parts of the world.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Laccolithnoun

   a mass of igneous rock intruded between sedimentary beds and resulting in a mammiform bulging of the overlying strata

2. Etymology: [Gr. a cistern + -lite, -lith.]

WikidataRate this definition:5.0 / 1 vote

1. Laccolith

   A laccolith is a sheet intrusion that has been injected between two layers of sedimentary rock. The pressure of the magma is high enough that the overlying strata are forced upward, giving the laccolith a dome or mushroom-like form with a generally planar base. Laccoliths tend to form at relatively shallow depths and are typically formed by relatively viscous magmas, such as those that crystallize to diorite, granodiorite, and granite. Cooling underground takes place slowly, giving time for larger crystals to form in the cooling magma. The surface rock above laccoliths often erodes away completely, leaving the core mound of igneous rock. The term was first applied as laccolite by Grove Karl Gilbert after his study of intrusions of diorite in the Henry Mountains of Utah in about 1875. It is often difficult to reconstruct shapes of intrusions. For instance, Devils Tower in Wyoming was thought to be a volcanic neck, but study has revealed it to be an eroded laccolith. The rock would have had to cool very slowly so as to form the slender pencil-shaped columns of phonolite porphyry seen today. However, erosion has stripped away the overlying and surrounding rock, and so it is impossible to reconstruct the original shape of the igneous intrusion; that rock may not be the remnant of a laccolith. At other localities, such as in the Henry Mountains and other isolated mountain ranges of the Colorado Plateau, some intrusions demonstrably have shapes of laccoliths. The small Barber Hill syenite-stock laccolith in Charlotte, Vermont, has several volcanic trachyte dikes associated with it. Molybdenite is also visible in outcrops on this exposed laccolith. In Big Bend Ranch State Park, at the southwesternmost visible extent of the Ouachita orogeny, lies the Solitario. It consists of the eroded remains of a laccolith, presumably named for the sense of solitude that observers within the structure might have, due to the partial illusion of endless expanse in all directions.

How to pronounce laccolith?

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How to say laccolith in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of laccolith in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of laccolith in Pythagorean Numerology is: 2

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Laccolith
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Laccolith
3. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/laccolith
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=laccolith