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Acari

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Journal Article
Published: 01 January 2009
Journal of Paleontology (2009) 83 (1): 153-159.
... time. References Alberti , G. , R. A. , Norton , J. , Adis , N. A. , Fernandez , E. , Franklin , M. , Kratzmann , A. I. , Moreno , G. , Weigmann , S. , and Woas , 1997 , Porose integumental organs of oribatid mites (Acari, Oribatida). 2. Fine structure...
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Journal Article
Published: 27 December 1989
Micropaleontology (1989) 35 (4): 367-373.
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Distribution of planktonic foraminifera in the Jaddala section. A. =  <b>Acari</b>...
in > GeoArabia
Published: 01 October 2010
Figure 9: Distribution of planktonic foraminifera in the Jaddala section. A. = Acarinina , G. = Globigerina , Ggk. = Globigerinatheka , Gr. = Globorotalia , Gs. = Globigerinoides , P. = Pseudohastigerina , M. = Morazovella , and Tu. = Turborotalia .
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FTIR spectra of pink opals (U, Uruapan; M, Mapimi; Ap, <b>Acari</b> pale; Ad, Acar...
Published: 01 September 2004
Fig. 2. FTIR spectra of pink opals (U, Uruapan; M, Mapimi; Ap, Acari pale; Ad, Acari dark). Spectra are shifted for clarity. Vertical lines highlight some of the palygorskite (P) peaks. Pure palygorskite and opal-CT are presented as references. Acari pink opal contains the most palygorskite
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SEM pictures of pink opal from Uruapan (U), Mapimi (M), <b>Acari</b> (A), and of q...
Published: 01 September 2004
Fig. 5. SEM pictures of pink opal from Uruapan (U), Mapimi (M), Acari (A), and of quincyite (Q). Mexican and Peruvian pink opals have the same microstructure: fibres of 20 to 30 nm in diameter, which form bundles. These bundles associate themselves in different orientations. For quincyite
Journal Article
Published: 01 September 2004
European Journal of Mineralogy (2004) 16 (5): 743-752.
...Fig. 2. FTIR spectra of pink opals (U, Uruapan; M, Mapimi; Ap, Acari pale; Ad, Acari dark). Spectra are shifted for clarity. Vertical lines highlight some of the palygorskite (P) peaks. Pure palygorskite and opal-CT are presented as references. Acari pink opal contains the most palygorskite...
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Journal Article
Published: 01 January 2000
Journal of Paleontology (2000) 74 (1): 158-178.
... than two decades but biological inclusions have only recently been found. The existence of crustaceans (amphipods and isopods), chelicerates (acari and arachnids), 12 orders of insects, and several bird feathers are reported in this preliminary study. In addition, there are leaf remains, molluscs...
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Journal Article
Journal: Economic Geology
Published: 01 November 1990
Economic Geology (1990) 85 (7): 1438-1446.
... with a Pb isochron age of 3.2 Ga in the 207 Pb/ 204 Pb versus 206 Pb/ 204 Pb covariation diagram. Mineral deposits of the copper veins in granitoids association at the Cata-Canete and Cobre-Acari districts plot along the same array. The isochron age of 3.2 Ga is too old to have chronological significance...
Journal Article
Journal: Economic Geology
Published: 01 November 1990
Economic Geology (1990) 85 (7): 1447-1461.
... to Albian volcano-sedimentary rocks. Geochronologic K-Ar data identify a Lower Cretaceous episode of metallogenesis for Ra[uacute]l, Condestable, and Eliana. Geologically related iron deposits of Hierro Acari and Marcona are dated as Lower Cretaceous and Upper Jurassic, respectively.Petrography and major...
Journal Article
Published: 01 April 1957
American Mineralogist (1957) 42 (3-4): 178-183.
...Cornelius S. Hurlbut, Jr. Abstract Bismutotantalite from Acari, Brazil, has been found in light brown, rounded stream pebbles. Cleavage {101}, {010}. G = 8.84 (meas.), 8.98 (cal.). Optically biaxial (+); n X = 2.388, n Y = 2.403, n Z = 2.428 for Li light. 2V = 80°, r < v. X = a , Y = b. Analysis...
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Percentage of palygorskite/opal as a function of the  d -spacing of trydimi...
Published: 01 September 2004
Fig. 7. Percentage of palygorskite/opal as a function of the d -spacing of trydimite-like stacking in opal. U represents pink opal from Uruapan, M from Mapimi, A from Acari.
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Pink opals X-ray diffractograms. “P” indicates main peaks of palygorskite, ...
Published: 01 September 2004
Fig. 1. Pink opals X-ray diffractograms. “P” indicates main peaks of palygorskite, and “Q” common quartz impurities. Pink opal from Uruapan contains the least palygorskite, whereas Acari pink opal contains the most. Note that the darkest coloured samples from Acari have more palygorskite than
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Figure  9 — 1,  Larva of Coleoptera, MCNA 8658, body length 2 mm.  2,  Aves...
Published: 01 January 2000
Figure 9 — 1, Larva of Coleoptera, MCNA 8658, body length 2 mm. 2, Aves, contour feather, MCNA 8632, length 16 mm. 3, Acari, Actinedida, MCNA 8633.1, body length 0.25 mm. 4, Acari, Actinedida in lateral view, MCNA 8634.1, body length 0.4 mm. 5, Arachnida, Araneae in ventral view, MCNA
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Raman spectra of pink opals (a). Spectra are shifted for clarity. Vertical ...
Published: 01 September 2004
Fig. 3. Raman spectra of pink opals (a). Spectra are shifted for clarity. Vertical lines highlight some of the peaks attributed to palygorskite (P). Acari pink opal contains the most palygorskite, whereas Uruapan opal contains the least, in agreement with XRD and FTIR results. (b). An enlargement
Journal Article
Published: 01 April 2010
Journal of Foraminiferal Research (2010) 40 (2): 206.
.... , and Bai , X. L. , 1992 , A new genus of chigger from Ningxia, China (Acari: Trombiculidae) : Acta Entomologica Sinica , v. 35 , p. 247 – 249 . ...
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S E M images (30 000×; except  h : 500× and  h ′: 10 000×) of common opal-C...
Published: 01 November 2008
opal from Peru (Acari mine, Arequipa, no. 817) with a structure built from bundles of fibers. Each fiber is diameter. ( c ) Fire opal from Mexico (Cerro Viejo mine, Queretaro, no. 408) having a structure made of randomly arranged platelets (~25 nm thick and 300 nm wide). Elementary nanograins
Journal Article
Journal: PALAIOS
Published: 01 March 2009
PALAIOS (2009) 24 (3): 137-139.
... ( Perrichot et al., 2002 ); and Acari: Tanaupodidae ( Judson and Makol, 2009 ). Other papers deal with diatoms ( Girard et al., 2009 ) and such diverse aquatic protists as foraminiferans, chlorophycean algae, and radiolarians, as well as sponge spicules ( Girard et al., 2008 ). Among other outstanding...
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Journal Article
Journal: Geology
Published: 01 July 2001
Geology (2001) 29 (7): 643-646.
... in the southwestern U.S.A. (Acari, Gamasida: Zerconidae), with a key to Nearctic genera of Zerconidae : International Journal of Acarology , v. 21 p. 253 – 259 . Buck , B.J. , and Monger , H.C. , 1999 , Stable isotopes and soil geomorphology as indicators of Holocene climate change, northern...
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Journal Article
Published: 01 November 2004
Journal of Paleontology (2004) 78 (6): 1146-1153.
... . 1994 . Oribatida of Canadian peatlands . Memoirs of the Entomological Society of Canada , 169 : 73 - 88 . Berlese , A. 1923 . Centuria sesta di Acari nuovi . Redia , 15 : 237 - 262 . Brongniart , A. 1828 . Prodrome d'une histoire d'un végétaux fossiles . Dictionnaire...
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Journal Article
Published: 01 February 2001
The Canadian Mineralogist (2001) 39 (1): 103-110.
.... Frenzel (1955) studied bismutotantalite from two localities in Brazil: Acary, Rio Grande do Norte, and Recife, Paraiba. Probably, these two localities are the same as those reported by Bhaskara Rao & Adusumilli (1966) : Acari in Rio Grande do Norte, and Picui and Pedra Lavrada, Paraiba, Brazil...
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