RT Journal Article
T1 Loss on ignition: a qualitative or quantitative method for organic matter andcarbonate mineral content in sediments?
A1 Santisteban Navarro, Juan Ignacio
A1 Mediavilla López, Rosa María
A1 López Pamo, Enrique
A1 Dabrio González, Cristino José
A1 Ruiz Zapata, María Blanca
A1 Gil García, María Elena
A1 Castaño Castaño, Silvino
A1 Martínez Alfaro, Pedro Emilio
AB Since the publication of the paper of Dean (1974), loss on ignition (LOI) has been widely used as a methodto estimate the amount of organic matter and carbonate mineral content (and indirectly of organic andinorganic carbon) in sediments. The relationships between LOI at 550 ºC (LOI550) and organic carbon(OC) content and between LOI at 950 ºC (LOI950) and inorganic carbon (IC) content are currently acceptedas a standard. However, the comparison of 150 analyses of samples of diverse lithologies, collectedfrom a single core, reveals that these relationships are affected by sediment composition (presence of clays,salts, and the variable content of organic carbon). This results in an incremental error on the estimation ofcarbon content from LOI values that invalidates the use of LOI values as a quantitative method forestimating carbon content. Conversely, the general trends of LOI550 and LOI950 show a good correlationwith carbon content (both organic and inorganic) allowing use of LOI as a qualitative test for carboncontent. Similarly, in our case, LOI at 105 ºC (LOI105) is a good qualitative proxy for the trends in gypsumcontent.
PB Springer Netherlands
SN 0921-2728
YR 2004
FD 2004-10
LK https://hdl.handle.net/20.500.14352/49367
UL https://hdl.handle.net/20.500.14352/49367
LA spa
NO The original publication is available at www.springerlink.com
DS Docta Complutense
RD 24 jul 2024