In which of the following periods earth’s climate was not warm?a...
Hercynian denoting a prolonged mountain-forming period in western Europe, eastern North America, and the Andes in the Upper Palaeozoic era, especially the Carboniferous and Permian periods.
View all questions of this test
In which of the following periods earth’s climate was not warm?a...
Understanding Earth's Climate through Geological Time Periods
Throughout Earth's history, different geological periods have experienced varying climates, with some being notably warmer than others. Let's explore the provided options:
Cambrian Period
- The Cambrian (about 541 to 485 million years ago) is known for a climate that was generally warm, promoting the diversification of life and the Cambrian Explosion.
Ordovician Period
- The Ordovician (approximately 485 to 444 million years ago) also experienced a warm climate, characterized by high sea levels and a rich marine biodiversity.
Silurian Period
- The Silurian (about 444 to 419 million years ago) continued the trend of a warm climate, with the development of early land plants and diverse marine life.
Hercynian Period
- The Hercynian (or Variscan) period, primarily associated with the late Paleozoic era, is marked by significant geological changes, including the formation of the supercontinent Pangaea. This period (approximately 359 to 299 million years ago) was characterized by cooler climates, especially during the late Carboniferous when extensive glaciation occurred in the southern hemisphere.
Conclusion
- Out of the options given, the Hercynian Period is the correct answer as it is the only period listed that did not experience a warm climate, contrasting with the warmer conditions of the Cambrian, Ordovician, and Silurian periods.