Magnetic stratigraphy observed in ferromanganese crust
نویسندگان
چکیده
منابع مشابه
Ultrafine - scale magnetostratigraphy of marine 1 ferromanganese crust
12 Hydrogenetic ferromanganese crusts are iron-manganese oxide chemical 13 precipitates on the seafloor that grow over periods of tens of millions of years. Their 14 secular records of chemical, mineralogical, and textural variations are archives of deep15 sea environmental changes. However, environmental reconstruction requires reliable 16 high-resolution age dating. Earlier chronological meth...
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Introduction: Defining the nature of the early crust on Mars remains a challenging problem due to the breadth of time and processes that have acted upon it. Concepts of planetary evolution and geophysical modeling suggest that primary crust may have originally formed during cooling of a magma ocean or by serial magmatism [1]. Most consider this early crust to have been broadly basaltic in compo...
متن کاملComposition, Morphology, and Stratigraphy of Noachian Crust around the Isidis basin
[1] Definitive exposures of pristine, ancient crust on Mars are rare, and the finding that much of the ancient Noachian terrain on Mars exhibits evidence of phyllosilicate alteration adds further complexity. We have analyzed high-resolution data from the Mars Reconnaissance Orbiter in the well-exposed Noachian crust surrounding the Isidis basin.We focus on data from the Compact Reconnaissance I...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1985
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1985.tb05120.x