Dear Sophie –
I’m back in this beautiful area for some camping and hiking. I pitched my tent near Glacier Lake,
and one day I was down at the stream, getting some water. You won’t believe what I found – the
fossilized remains of an ancient bird! Bid deal – you of all people know there are tons of bird fossils up
here. But this one was in a layer of sandstone, which was lying underneath a layer of coal!
Doesn’t this prove that birds evolved before reptiles? There’s no question that the coal is from
the Carboniferous Period, about 320 million years ago. But the coal layer is on top of the sandstone, so
the sandstone layer must be older. This means the bird remains are older too! Can you believe that birds
evolved 350 million years ago??
Gotta run. I’ll give you a call as soon as I get back in town.
Randy
Dear Sophie –
I’m back in this beautiful area for some camping and hiking. I pitched my tent near Glacier Lake,
and one day I was down at the stream, getting some water. You won’t believe what I found – the
fossilized remains of an ancient bird! Bid deal – you of all people know there are tons of bird fossils up
here. But this one was in a layer of sandstone, which was lying underneath a layer of coal!
Doesn’t this prove that birds evolved before reptiles? There’s no question that the coal is from
the Carboniferous Period, about 320 million years ago. But the coal layer is on top of the sandstone, so
the sandstone layer must be older. This means the bird remains are older too! Can you believe that birds
evolved 350 million years ago??
Gotta run. I’ll give you a call as soon as I get back in town.
Randy
Dear Sophie –
I’m back in this beautiful area for some camping and hiking. I pitched my tent near Glacier Lake,
and one day I was down at the stream, getting some water. You won’t believe what I found – the
fossilized remains of an ancient bird! Bid deal – you of all people know there are tons of bird fossils up
here. But this one was in a layer of sandstone, which was lying underneath a layer of coal!
Doesn’t this prove that birds evolved before reptiles? There’s no question that the coal is from
the Carboniferous Period, about 320 million years ago. But the coal layer is on top of the sandstone, so
the sandstone layer must be older. This means the bird remains are older too! Can you believe that birds
evolved 350 million years ago??
Gotta run. I’ll give you a call as soon as I get back in town.
Randy
Clue #1
Not all rocks follow the Law of Superposition. Igneous rocks such as granites, for example, can push up
from beneath or in between layers of rocks. A young layer of basalt could actually lie beneath an older
layer of sandstone.
Clue #1
Not all rocks follow the Law of Superposition. Igneous rocks such as granites, for example, can push up
from beneath or in between layers of rocks. A young layer of basalt could actually lie beneath an older
layer of sandstone.
Clue #1
Not all rocks follow the Law of Superposition. Igneous rocks such as granites, for example, can push up
from beneath or in between layers of rocks. A young layer of basalt could actually lie beneath an older
layer of sandstone.
Clue #1
Not all rocks follow the Law of Superposition. Igneous rocks such as granites, for example, can push up
from beneath or in between layers of rocks. A young layer of basalt could actually lie beneath an older
layer of sandstone.
Clue #1
Not all rocks follow the Law of Superposition. Igneous rocks such as granites, for example, can push up
from beneath or in between layers of rocks. A young layer of basalt could actually lie beneath an older
layer of sandstone.
Clue #2
Forces beneath the earth’s crust can break and fold rocks. Layers can be tilted, turned upside-down,
or piled up on top of each other during mountain building.
Clue #2
Forces beneath the earth’s crust can break and fold rocks. Layers can be tilted, turned upside-down,
or piled up on top of each other during mountain building.
Clue #2
Forces beneath the earth’s crust can break and fold rocks. Layers can be tilted, turned upside-down,
or piled up on top of each other during mountain building.
Clue #2
Forces beneath the earth’s crust can break and fold rocks. Layers can be tilted, turned upside-down,
or piled up on top of each other during mountain building.
Clue #2
Forces beneath the earth’s crust can break and fold rocks. Layers can be tilted, turned upside-down,
or piled up on top of each other during mountain building.
Clue #2
Forces beneath the earth’s crust can break and fold rocks. Layers can be tilted, turned upside-down,
or piled up on top of each other during mountain building.