Hesperian
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2]
Page Revisions
| Year | Metadata | Sections | Top Words | First Paragraph |
| 2018 |
80113 characters 8 sections 14 paragraphs 10 images 232 internal links 12 external links |
1. Description and name origin 2. Hesperian chronology and stratigraphy |
hesperian 0.650 stratigraphic 0.234 hesperia 0.161 units 0.150 geologic 0.144 period 0.134 ordovician 0.124 noachian 0.115 cretaceous 0.108 ridged 0.097 planum 0.095 uncertain 0.091 mya 0.090 245 0.087 cratering 0.082 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |
| 2017 |
79968 characters 8 sections 14 paragraphs 10 images 232 internal links 12 external links |
1. Description and name origin 2. Hesperian chronology and stratigraphy |
hesperian 0.650 stratigraphic 0.234 hesperia 0.161 units 0.150 geologic 0.144 period 0.134 ordovician 0.124 noachian 0.115 cretaceous 0.108 ridged 0.097 planum 0.095 uncertain 0.091 mya 0.090 245 0.087 cratering 0.082 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |
| 2016 |
79561 characters 8 sections 14 paragraphs 10 images 232 internal links 12 external links |
1. Description and name origin 2. Hesperian chronology and stratigraphy |
hesperian 0.650 stratigraphic 0.234 hesperia 0.161 units 0.150 geologic 0.144 period 0.134 ordovician 0.124 noachian 0.115 cretaceous 0.108 ridged 0.097 planum 0.095 uncertain 0.091 mya 0.090 245 0.087 cratering 0.082 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |
| 2015 |
77036 characters 8 sections 13 paragraphs 10 images 231 internal links 12 external links |
1. Description and name origin 2. Hesperian chronology and stratigraphy |
hesperian 0.650 stratigraphic 0.234 hesperia 0.161 units 0.150 geologic 0.144 period 0.134 ordovician 0.124 noachian 0.115 cretaceous 0.108 ridged 0.097 planum 0.095 uncertain 0.091 mya 0.090 245 0.087 cratering 0.082 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |
| 2014 |
77048 characters 8 sections 13 paragraphs 10 images 231 internal links 12 external links |
1. Description and name origin 2. Hesperian chronology and stratigraphy |
hesperian 0.650 stratigraphic 0.234 hesperia 0.161 units 0.150 geologic 0.144 period 0.134 ordovician 0.124 noachian 0.115 cretaceous 0.108 ridged 0.097 planum 0.095 uncertain 0.091 mya 0.090 245 0.087 cratering 0.082 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |
| 2013 |
77150 characters 8 sections 13 paragraphs 10 images 231 internal links 12 external links |
1. Description and name origin 2. Hesperian chronology and stratigraphy |
hesperian 0.650 stratigraphic 0.234 hesperia 0.161 units 0.150 geologic 0.144 period 0.134 ordovician 0.124 noachian 0.115 cretaceous 0.108 ridged 0.097 planum 0.095 uncertain 0.091 mya 0.090 245 0.087 cratering 0.082 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |
| 2012 |
75108 characters 8 sections 13 paragraphs 9 images 232 internal links 11 external links |
1. Hesperian chronology and stratigraphy |
hesperian 0.653 stratigraphic 0.235 hesperia 0.162 units 0.150 geologic 0.145 period 0.127 ordovician 0.124 noachian 0.115 cretaceous 0.108 ridged 0.098 planum 0.095 uncertain 0.091 mya 0.090 cratering 0.082 boundary 0.081 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |
| 2011 |
74327 characters 8 sections 13 paragraphs 9 images 231 internal links 7 external links |
1. Hesperian chronology and stratigraphy |
hesperian 0.655 stratigraphic 0.236 hesperia 0.162 units 0.151 geologic 0.146 period 0.128 ordovician 0.125 noachian 0.115 ridged 0.098 planum 0.095 uncertain 0.092 mya 0.090 cratering 0.082 cretaceous 0.082 boundary 0.081 |
The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitional period of Martian history. During the Hesperian, Mars changed from the wetter and perhaps warmer world of the Noachian to the dry, cold, and dusty planet seen today. [1] The absolute age of the Hesperian Period is uncertain. The beginning of the period followed the end of the late heavy bombardment [2] and probably corresponds to the start of the lunar Late Imbrian period, [3] [4] around 3700 million years ago (Mya). The end of the Hesperian Period is much more uncertain and could range anywhere from 3200 to 2000 Mya, [5] with 3000 Mya being frequently cited. The Hesperian Period is roughly coincident with the Earth’s early Archean Eon. [2] |