@article{fdi:010088251,
  title = {{R}evisiting the {C}{\^o}te d'{I}voire tektite strewn field},
  author = {{S}oro, {P}. and {R}ochette, {P}. and {B}aratoux, {D}avid and {K}ouamelan, {A}. {N}. and {A}ndrieu, {V}. and {M}onda, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he tektites of the {C}o<{SIC}>te d'{I}voire strewn field, called "ivorites", come from the {B}osumtwi meteorite impact crater formed 1.07 {M}a ago in {G}hana. {U}nlike other tektite strewn fields in the world, this tektite strewn field has remained under-explored after the pioneering works of {A}. {L}acroix in the 1930s who reported the first tektites on the {A}frican continent, followed by a few explorers in the 1960s. {T}o date, the geochemical properties of only slightly more than 20 ivorites have been measured, while there are potentially thousands to be discovered by analogy with other strewn fields. {B}ased on these earlier works, the ivorites strewn field is considered to form an ellipse of about 1500 km2 around the town of {O}uelle & {PRIME}; and {D}aoukro, setting apart three isolated finds. {W}e conducted six exploratory missions in {C}o<{SIC}>te d'{I}voire between 2019 and 2023 and report 174 new finds. {T}hese discoveries are mostly within the known limits of the strewn field, but several discoveries outside these limits extend the strewn field to an area of 4100 km2. {T}he furthest discovery considered to be part of the strewn field is more than 45 km south of its previous limits. {T}hese new ivorites present various shapes (teardrops, dumbbells, spheres, ellipsoids) with masses ranging from 1 to 96 g. {A} geochemical analysis of 172 of these ivorites was performed using a portable {X}-ray fluorescence spectrometer. {I}n addition, 87 ivorites (unknown locations), made available by the {SODEMI} museum ({C}o<{SIC}>te d'{I}voire's governmental mining development company in {A}bidjan) were also analyzed. {T}heir geochemical composition is clearly distinct from that of tektites from other strewn fields. {H}owever, these analyses reveal a more variable chemical composition than the apparent homogeneity previously inferred from a small number of specimens. {T}he magnetic susceptibility of these tektites, measured with the {SM}150 device, is homogeneous and the small variations are essentially related to the iron content. {T}he measured density of ivorites is comparable to the pore-free densities estimated from their chemical composition, implying that the abundant vesicles commonly observed at the surface, associated with bubbles and degassing of the silicate melt, are not present in the interior.},
  keywords = {{COTE} {D}'{IVOIRE}},
  booktitle = {},
  journal = {{J}ournal of {A}frican {E}arth {S}ciences},
  volume = {205},
  numero = {},
  pages = {104990 [14 p.]},
  ISSN = {1464-343{X}},
  year = {2023},
  DOI = {10.1016/j.jafrearsci.2023.104990},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088251},
}