Zobrazeno 1 - 10
of 35
pro vyhledávání: '"T. C. Rolph"'
Autor:
T. C. Rolph, Xue Gang Mao, Paul Hesse, John Shaw, Xiu Ming Liu, Jian Zhong Jiang, Jan Bloemendal
Publikováno v:
Science China Earth Sciences. 53:1153-1162
Maghemite (γ-Fe2O3) is a very common mineral at the earth’s surface and also an important material for making music and video tapes. Maghemite is usually synthesized from magnetite under oxidizing conditions after a few hours or a few days below a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4bc3100580b357938f296b840f72132
https://doi.org/10.1007/s11430-010-0030-2
https://doi.org/10.1007/s11430-010-0030-2
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 199:153-166
The Red Clay unit of northern China is a widespread Miocene–Pliocene (7.2–2.5 Ma) aeolian deposit that underlies much of the Quaternary loess–paleosol sequence in the central Loess Plateau. It comprises a sequence of highly developed soils and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9227e7468e9310f29a6811d4ad2b498d
https://doi.org/10.1016/s0031-0182(03)00504-2
https://doi.org/10.1016/s0031-0182(03)00504-2
Autor:
T. C. Rolph, K. D. van der Post, George A. Wolff, Leonardo Langone, Mauro Frignani, Carla Alberta Accorsi, Frank Oldfield, Luigi Vigliotti, Fabio Trincardi, Alessandra Asioli, Anna Maria Mercuri, Steve Juggins, Zoe Gibbs, Nicholas Branch
Publikováno v:
Quaternary Science Reviews. 22:319-342
A multi-proxy study of a Holocene sediment core (RF 93-30) from the western flank of the central Adriatic, in 77 m of water, reveals a sequence of changes in terrestrial vegetation, terrigenous sediment input and benthic fauna, as well as evidence fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1db55cadeeac828398b5b8d1e98603c7
https://doi.org/10.1016/s0277-3791(02)00088-4
https://doi.org/10.1016/s0277-3791(02)00088-4
Autor:
Xiaoke Qiang, T. C. Rolph, Zhisheng An, Yanjun Cai, Jie Zhou, Huayu Lu, Xiuming Liu, Paul Hesse
Publikováno v:
Science in China Series D: Earth Sciences. 44:635-651
The study on magnetic properties of the red clay indicates that the red clay and loess-paleosol sequence have a common magnetic mineralogy, with magnetite, maghemite, hematite (and possibly goethite) contributing to the magnetic behavior. The red cla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34951e758026a89adb8204ae417ea924
https://doi.org/10.1007/bf02875337
https://doi.org/10.1007/bf02875337
Autor:
T. C. Rolph, Patrizia Comoli, Vivienne J. Jones, Steve Juggins, Claudio A. Belis, Anna M. Nocentini, J. John Lowe, D. Ariztegui, Aldo Marchetto, Marina Manca, Andrea Lami, David B. Ryves, Richard W. Battarbee, Frank Oldfield, Julieta Massaferro, Piero Guilizzoni, Christina Chondrogianni
Publikováno v:
Journal of Paleolimnology. 23:117-127
We report the results of analyses of pigments (derived from algae and photosynthetic bacteria), diatoms and invertebrate fossil remains (ostracods, cladocerans, chironomids) in two late Pleistocene sediment cores from Lago Albano, a crater lake in Ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4921583e439a1dba904ba301777b2248
https://doi.org/10.1023/a:1008098010283
https://doi.org/10.1023/a:1008098010283
Publikováno v:
Quaternary International. 62:93-102
The in situ pedogenic enhancement of ferrimagnetic content provides the well-established patterns of magnetic susceptibility variation within mid- to low-latitude loess deposits such as those of China and Central Europe. However, this pattern of high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::427c288f859b40a4317494b4c37b29c5
https://doi.org/10.1016/s1040-6182(99)00027-0
https://doi.org/10.1016/s1040-6182(99)00027-0
Publikováno v:
Physics of the Earth and Planetary Interiors. 112:191-201
Maghaemite and magnetite, common ferrimagnetic minerals in surficial soils, have physical properties which are similar except for the thermal instability of the former. Utilising this exception, a study of thermomagnetic properties has been made to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6930ec3c9c3b62041561a7f58be7b0a
https://doi.org/10.1016/s0031-9201(99)00002-3
https://doi.org/10.1016/s0031-9201(99)00002-3
Publikováno v:
Geophysical Journal International. 136:714-718
Palaeo- and archaeointensity determinations of the geomagnetic field are limited by mineralogical alteration that may occur when samples are heated in the laboratory to produce a TRM (Thellier & Thellier 1959; Shaw 1974). By using microwave excitatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::435d262007b579779f504124009f7f91
https://doi.org/10.1046/j.1365-246x.1999.00765.x
https://doi.org/10.1046/j.1365-246x.1999.00765.x
Publikováno v:
Geophysical Journal International. 134:856-866
SUMMARY Palaeomagnetic results are presented from a volcanic sequence in Zhijin County, Guizhou Province, Southern China. The lavas and associated volcanic breccias comprising the sequence represent a southern extension of the Emeishan volcanic provi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::271b95660ed73c2e024ac639136ff9bd
https://doi.org/10.1046/j.1365-246x.1998.00634.x
https://doi.org/10.1046/j.1365-246x.1998.00634.x
Autor:
T. C. Rolph
Publikováno v:
Geophysical Journal International. 130:125-136
SUMMARY Samples collected in vertical sections from two recent (1169 AD and 1971 AD) lava flows show significant variations in both the palaeomagnetic vector and the rock magnetic characteristics. The age and the short cooling time of the flows (both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c5315e37a5510e8451450204925d41e
https://doi.org/10.1111/j.1365-246x.1997.tb00992.x
https://doi.org/10.1111/j.1365-246x.1997.tb00992.x