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How can you tell that sandstone is older than a basalt layer?
If the sandstone is below the basalt layer, it is older. Though caution is advised, to make sure it is really a basalt layer and not an intrusion of gabbro. Other indicators that the sandstone is older is evidence of alteration to the sandstone where the two meet (called a "baked contact") and pieces of sandstone being found in the the basalt.
How can you tell that shale was not deposited on top of the basalt layer?
Shale typically forms in calm, water-rich environments, such as lakes or oceans, where fine particles settle slowly. In contrast, basalt is an igneous rock that forms from volcanic activity and generally indicates a more dynamic, high-energy environment. If shale were deposited on top of basalt, there would likely be signs of erosion or an unconformity, as well as a lack of sedimentary features in the shale that would suggest it was laid down in a different, more stable environment. Additionally, the mineral composition and grain size of the shale would differ significantly from that of the underlying basalt.
What features tell you how a sedimentary rocked is layered?
Sedimentary rocks are often deposited in layers as strata. The feature that tells how a sedimentary rock is layered is called the bedding.
What type of rocks are banded or non banded?
Well, friend, banded rocks are often made up of layers of different materials, like sedimentary rocks such as sandstone or shale. Non-banded rocks, on the other hand, can include igneous rocks like granite or basalt, which are formed from cooled magma without distinct layers. Both types of rocks have their own unique beauty and story to tell in the great tapestry of the Earth.
Which princeples tell you how rock layers are laid?
The principles that explain how rock layers are laid include the Law of Superposition, which states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest at the top. The Principle of Original Horizontality indicates that layers of sediment are originally deposited horizontally under the action of gravity. Additionally, the Principle of Lateral Continuity suggests that rock layers extend laterally in all directions until they thin out or encounter a physical barrier.
How can you tell that the sandstone was not deposited on top of the basalt?
The sandstone layer is older than the basalt. The older rock cannot be on top of the younger rock. The sandstone and the basalt (or basalt dike) are both deposited at the same depth.
How can you tell that sandstone is older than a basalt layer?
If the sandstone is below the basalt layer, it is older. Though caution is advised, to make sure it is really a basalt layer and not an intrusion of gabbro. Other indicators that the sandstone is older is evidence of alteration to the sandstone where the two meet (called a "baked contact") and pieces of sandstone being found in the the basalt.
How can you tell that shale was not deposited on top of the basalt layer?
Shale typically forms in calm, water-rich environments, such as lakes or oceans, where fine particles settle slowly. In contrast, basalt is an igneous rock that forms from volcanic activity and generally indicates a more dynamic, high-energy environment. If shale were deposited on top of basalt, there would likely be signs of erosion or an unconformity, as well as a lack of sedimentary features in the shale that would suggest it was laid down in a different, more stable environment. Additionally, the mineral composition and grain size of the shale would differ significantly from that of the underlying basalt.
What features tell you how a sedimentary rocked is layered?
Sedimentary rocks are often deposited in layers as strata. The feature that tells how a sedimentary rock is layered is called the bedding.
What type of rocks are banded or non banded?
Well, friend, banded rocks are often made up of layers of different materials, like sedimentary rocks such as sandstone or shale. Non-banded rocks, on the other hand, can include igneous rocks like granite or basalt, which are formed from cooled magma without distinct layers. Both types of rocks have their own unique beauty and story to tell in the great tapestry of the Earth.
Can you see who deposited your check?
No, typically you cannot see who deposited your check unless they tell you directly.
Which princeples tell you how rock layers are laid?
The principles that explain how rock layers are laid include the Law of Superposition, which states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest at the top. The Principle of Original Horizontality indicates that layers of sediment are originally deposited horizontally under the action of gravity. Additionally, the Principle of Lateral Continuity suggests that rock layers extend laterally in all directions until they thin out or encounter a physical barrier.
How could you tell if a volcano makes felsite or basalt lava?
Thin lava
What does relative dating tell us about rock layers and the fossils they contain?
Relative dating tells us the age of the strata in relation to each other. Older strata are invariably further down, except on the rare occasions of overthrusts. When an overthrust occurs there is typically a discontinuity--clear evidence this has occurred. More recent layers will be deposited above the older layers.
What does a trellis drainage pattern tell about the rocks underneath it?
A trellis drainage pattern typically forms on folded or tilted rock layers, indicating the presence of underlying folded or tilted bedrock. This pattern develops when rivers flow along the axes of folds or along the edges of tilted rock layers, eroding and shaping the landscape accordingly.
What layers of rock can tell us about the climate when the rocks were forming?
Different types of rock layers, such as sedimentary rocks like limestone or sandstone, can provide information about past climates based on the fossils they contain. For example, the presence of tropical plant fossils in certain layers indicates a warm climate. Additionally, the ratio of certain isotopes in rocks can also provide clues about past temperatures and climate conditions.
How can you tell which Basalt rocks has been in the river the longest?
when the rock is more rounded than the others
