Amazonian (Mars)
The Amazonian is a geologic system and time period on the planet Mars characterized by low rates of meteorite and asteroid impacts and by cold, hyperarid conditions broadly similar to those on Mars today. [1] [2] The transition from the preceding Hesperian period is somewhat poorly defined. The Amazonian is thought to have begun around 3 billion years ago, although error bars on this date are extremely large (~500 million years). [3] The period is sometimes subdivided into the Early, Middle, and Late Amazonian. The Amazonian continues to the present day.
Page Revisions
| Year | Metadata | Sections | Top Words | First Paragraph |
| 2017 |
67689 characters 7 sections 19 paragraphs 17 images 215 internal links 2 external links |
1. Description and name origin |
amazonian 0.533 cretaceous 0.236 hirise 0.195 amazonis 0.191 stratigraphic 0.170 158 0.157 reconstruct 0.147 period 0.130 absent 0.105 periods 0.100 preservation 0.095 gaps 0.094 interval 0.092 processes 0.090 strata 0.090 |
The Amazonian is a geologic system and time period on the planet Mars characterized by low rates of meteorite and asteroid impacts and by cold, hyperarid conditions broadly similar to those on Mars today. [1] [2] The transition from the preceding Hesperian period is somewhat poorly defined. The Amazonian is thought to have begun around 3 billion years ago, although error bars on this date are extremely large (~500 million years). [3] The period is sometimes subdivided into the Early, Middle, and Late Amazonian. The Amazonian continues to the present day. |
| 2016 |
66542 characters 7 sections 19 paragraphs 17 images 214 internal links 2 external links |
1. Description and name origin |
amazonian 0.533 cretaceous 0.236 hirise 0.195 amazonis 0.191 stratigraphic 0.170 158 0.157 reconstruct 0.147 period 0.130 absent 0.105 periods 0.100 preservation 0.095 gaps 0.094 interval 0.092 processes 0.090 strata 0.090 |
The Amazonian is a geologic system and time period on the planet Mars characterized by low rates of meteorite and asteroid impacts and by cold, hyperarid conditions broadly similar to those on Mars today. [1] [2] The transition from the preceding Hesperian period is somewhat poorly defined. The Amazonian is thought to have begun around 3 billion years ago, although error bars on this date are extremely large (~500 million years). [3] The period is sometimes subdivided into the Early, Middle, and Late Amazonian. The Amazonian continues to the present day. |
| 2015 |
65986 characters 7 sections 19 paragraphs 17 images 213 internal links 2 external links |
1. Description and name origin |
amazonian 0.533 cretaceous 0.236 hirise 0.195 amazonis 0.191 stratigraphic 0.170 158 0.157 reconstruct 0.147 period 0.130 absent 0.105 periods 0.100 preservation 0.095 gaps 0.094 interval 0.092 processes 0.090 strata 0.090 |
The Amazonian is a geologic system and time period on the planet Mars characterized by low rates of meteorite and asteroid impacts and by cold, hyperarid conditions broadly similar to those on Mars today. [1] [2] The transition from the preceding Hesperian period is somewhat poorly defined. The Amazonian is thought to have begun around 3 billion years ago, though error bars on this date are extremely large (~500 million years). [3] The period is sometimes subdivided into the Early, Middle, and Late Amazonian. The Amazonian continues to the present day. |
| 2013 |
66003 characters 7 sections 19 paragraphs 17 images 213 internal links 2 external links |
1. Description and name origin |
amazonian 0.532 cretaceous 0.235 hirise 0.195 amazonis 0.190 stratigraphic 0.170 158 0.157 reconstruct 0.147 period 0.130 absent 0.105 periods 0.100 preservation 0.095 gaps 0.094 interval 0.092 processes 0.090 strata 0.090 |
The Amazonian is a geologic system and time period on the planet Mars characterized by low rates of meteorite and asteroid impacts and by cold, hyperarid conditions broadly similar to those on Mars today. [1] [2] The transition from the preceding Hesperian period is transitional and somewhat poorly defined. The Amazonian is thought to have begun around 3 billion years ago, though error bars on this date are extremely large (~500 million years). [3] The period is sometimes subdivided into the Early, Middle, and Late Amazonian. The Amazonian continues to the present day. |