This document describes different types of intrusive volcanic rocks. It defines batholiths as large irregular reservoirs of magma that cool slowly underground. Laccoliths are dome-shaped intrusions that push up rock layers as magma is blocked below. Sills are horizontal sheets that form between bedding planes, while dikes are vertical or diagonal intrusions that cut across bedding planes. In conclusion, intrusive volcanism occurs when magma enters and solidifies in weaknesses or chambers in the earth's crust.
The name ophiolite derived from Greek root which means
Ophio : snake or serpent Litho : Stone
The green colour, structure and texture of sheared ultramafic rocks is similar to some serpents
Economically :
Massive Sulphide
It founded within pillow lava most of massive Sulphide associated in ophiolites have well developed Gossans (bright colored iron oxide, hydroxides, and sulfides) which is very rich in gold.
Chromite
Stratiform (be tabular or pencil shape) or podiform (irregular shape) within ultra-mafic rocks
These deposits are developed on serpentinite peridotite
Laterites (nickel and iron)
Asbestos
Talc
Magenesite
ophiolite sequence :
Sediments
Pillow Lavas
Dykes
Gabbros
Layered Gabbro
Layered Peridotite
Upper mantle
The name ophiolite derived from Greek root which means
Ophio : snake or serpent Litho : Stone
The green colour, structure and texture of sheared ultramafic rocks is similar to some serpents
Economically :
Massive Sulphide
It founded within pillow lava most of massive Sulphide associated in ophiolites have well developed Gossans (bright colored iron oxide, hydroxides, and sulfides) which is very rich in gold.
Chromite
Stratiform (be tabular or pencil shape) or podiform (irregular shape) within ultra-mafic rocks
These deposits are developed on serpentinite peridotite
Laterites (nickel and iron)
Asbestos
Talc
Magenesite
ophiolite sequence :
Sediments
Pillow Lavas
Dykes
Gabbros
Layered Gabbro
Layered Peridotite
Upper mantle
The term "trap" has been used in geology since 1785–95 for rock formations. It is derived from the Swedish word for stairs (trapp , trappa) and refers to the step-like hills forming the landscape of the region.
The plateau: also called a high plain or tableland, is an area of highland, usually consisting of relatively flat terrain. A plateau is an elevated land. It is a flat-topped table standing above the surrounding area. A plateau may have one or more sides with steep slopes.
LIP – Large Igneous provinces. (Province = Area / Region)
DVP - The Deccan Volcanic Province is one of the Earth’s giant continental flood basalts and has a total exposed area of about half a million square kilometers in Maharashtra, Madhya Pradesh, Gujrat and some part of Andhra Pradesh. Deccan trap has maximum thickness 3400m in western ghat and its thickness goes decrease toward east side. At Amrakantat on east its thickness is just 160m. Geographical distribution is between latitudes 16° - 24° N and longitudes 70° - 77° E.
Hi I'm Misson Choudhury , A Post Graduate student, Graduated from Utkal university and Now pursuing my m.sc in applied geology at Bangalore university, Bangalore, i love geological mapping,drawing,hill climbing and tracking..
Boundary problems between :-
Precambrian/Cambrian
Permian/Triassic
Cretaceous/Tertiary
Neogene/Quaternary
Stratigraphic boundaries are determined by one or more of geological events such as volcanic activity, sedimentation, tectonism, paleo-environments & evolution of life.
Faunal records have played major role in determining the boundaries of the Phanerozoic units.
The other geological events are dated on the evidence of fossil records.
IGNEOUS ROCKS AND THEIR PROPERTIES, USES AND DIFFERENT VARITIES OF VOLCANIC INTRUSIONS , MEGASCOPIC PROPERTIES OF VARIOUS IGNEOUS ROCKS
PROPERTIES AND USES OF IGNEOUS ROCKS
CHARECTERSTICS OF IGNEOUS ROCKS WITH FIGURES
The term "trap" has been used in geology since 1785–95 for rock formations. It is derived from the Swedish word for stairs (trapp , trappa) and refers to the step-like hills forming the landscape of the region.
The plateau: also called a high plain or tableland, is an area of highland, usually consisting of relatively flat terrain. A plateau is an elevated land. It is a flat-topped table standing above the surrounding area. A plateau may have one or more sides with steep slopes.
LIP – Large Igneous provinces. (Province = Area / Region)
DVP - The Deccan Volcanic Province is one of the Earth’s giant continental flood basalts and has a total exposed area of about half a million square kilometers in Maharashtra, Madhya Pradesh, Gujrat and some part of Andhra Pradesh. Deccan trap has maximum thickness 3400m in western ghat and its thickness goes decrease toward east side. At Amrakantat on east its thickness is just 160m. Geographical distribution is between latitudes 16° - 24° N and longitudes 70° - 77° E.
Hi I'm Misson Choudhury , A Post Graduate student, Graduated from Utkal university and Now pursuing my m.sc in applied geology at Bangalore university, Bangalore, i love geological mapping,drawing,hill climbing and tracking..
Boundary problems between :-
Precambrian/Cambrian
Permian/Triassic
Cretaceous/Tertiary
Neogene/Quaternary
Stratigraphic boundaries are determined by one or more of geological events such as volcanic activity, sedimentation, tectonism, paleo-environments & evolution of life.
Faunal records have played major role in determining the boundaries of the Phanerozoic units.
The other geological events are dated on the evidence of fossil records.
IGNEOUS ROCKS AND THEIR PROPERTIES, USES AND DIFFERENT VARITIES OF VOLCANIC INTRUSIONS , MEGASCOPIC PROPERTIES OF VARIOUS IGNEOUS ROCKS
PROPERTIES AND USES OF IGNEOUS ROCKS
CHARECTERSTICS OF IGNEOUS ROCKS WITH FIGURES
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
4. INTRODUCTION
there are two types rocks which
is produced by the
vulcanicity.they are,
1.extrusive rocks
2.intrusive rocks
5.
6. INTRODUCTION
• Major intrusive rocks are,
• Batholiths,laccoliths,phacoliths,lopoliths,sills,
dikes, etc.
• When gases & vapour are not erupted
strongly,the ascending magmas to not erupt
as lava rather these are intruded in below
crustal surface and after solidification
assume intrusive rocks.
7. BATHOLITH:
Description: It is a large, irregularly shaped
reservoir of magma.
Formation: Magma intrudes into a large
chamber beneath the surface of the earth. It
cools and solidifies at a very slow rate there.
It is commonly composed of coarse-grained
rocks (e.g., granite)
Batholith cools and solidifies, later to be
exposed at the surface through erosion
8.
9. LACCOLITH:
Description: It is a dome like feature
between bedding planes.
Formation: Magma intrudes between bedding planes,
but its progression is blocked by a structure. The
magma pushes up the rock layer above it. It cools and
solidifies at a very slow rate there.
Acid rocks are more common than basic rocks in
laccoliths.
10.
11. PHACOLITH:
A phacolith is a pluton parallel to the
bedding plane.
It is typically lens-shaped pluton that
occupies either the crest of an anticline or
the trough of a syncline.
In rare cases the body may extend as a
sill from the crest of an anticline through
the trough of an adjacent syncline, such
as cross section.
12.
13. LOPOLITH:
A saucer- or lens-shaped body of intrusive
igneous rock, formed by the penetration of
magma between the beds or layers of existing
rock and subsequent subsidence beneath the
intrusion.
It is believed that lopoliths are formed when
magma which has intruded into the earth’s
crust draws close to the earth’s surface and the
sedimentary rock underlying the lopolith sinks
in the area of the magma chamber.
14.
15. SILLS:
Description: It is a horizontal sheet like
feature between bedding planes.
Formation: Magma intrudes between bedding
planes. It cools and solidifies at a very slow rate
there.
Sills can be confused with solidified lava flows;
however, there are several differences between
them, i.e., intruded sills will show partial melting
and incorporation of the surrounding country
rock.
16.
17. DYKES:
Description: It is a vertical or diagonal wall like
feature cutting across bedding planes.
Formation: Magma intrudes into a line of
weakness cutting across beddingplanes
vertically or at an angle. It cools and solidifies
at a very slow rate there.
Dikes can be either intrusive or sedimentary in
origin. For example, when molten rock intrudes
into a crack then crystallizes, it is an igneous
dike. When sediment fills a pre-existing crack,
it is a clastic dike.
18.
19. CONCLUSION:
Intrusive vulcanicity occurs when the
magma enters and solidifies in lines of
weakness or chambers in the earth's
crust.
Many mountain ranges, such as the Sierra
Nevada in California, are formed mostly by
intrusive rock, large granite (or related
rock) formations.