Geology Page

Haüyne

<div dir="ltr" style="text-align: left;" trbidi="on">
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://4.bp.blogspot.com/-XfNRy634MxE/U00RgkC9SwI/AAAAAAAAG4o/WShvn1Jsvl4/s1600/0248783001250830653.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://4.bp.blogspot.com/-XfNRy634MxE/U00RgkC9SwI/AAAAAAAAG4o/WShvn1Jsvl4/s1600/0248783001250830653.jpg" height="213" width="320"></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i>San Vito quarry, San Vito, Ercolano, Monte Somma, <br>Somma-Vesuvius Complex, Naples Province, Campania, Italy<br>© Chinellato Matteo</i></td></tr>
</tbody></table>
<u><b>Formula: </b></u>(Na,Ca)<sub>4-8</sub>(Al<sub>6</sub>Si<sub>6</sub>(O,S)<sub>24</sub>)(SO<sub>4</sub>,Cl)<sub>1-2</sub><br>
                Sulfite and Polysulfide anions also occur in some examples.<br>
<u><b>System:</b></u>    Isometric    <br>
<u><b>Colour: </b></u>   Blue, white, grey, ...<br>
<u><b>Lustre: </b></u>   Vitreous, Greasy<br>
<u><b>Hardness:</b></u> 5½ - 6<br>
<u><b>Member of: </b></u>Sodalite Group<br>
<u><b>Name:</b></u> Named in 1807 by Tønnes Christian Bruun-Neergaard in honor of Abbé Rene Just Haüy [February 28, 1743 Saint-Just-en-Chausse, France - June 1, 1822 Paris, France], "Father of Crystallography". Haüy was a Roman Catholic Priest and curator of the Muséum National d'Histoire Naturelle in Paris. Haüy devised and sold wooden crystal models which were highly prized internationally, both among his contemporaries as well as today. The mineral was temporarily name hauynite by James Dwight Dana in 1868.<br>
</div>

Haüyne

San Vito quarry, San Vito, Ercolano, Monte Somma, Somma-Vesuvius Complex, Naples Province, Campan...

Upper Cretaceous

Upper Cretaceous

Subdivision of the Cretaceous system according to the IUGS, as of July 2012. The Late Cretaceou...

Lower Cretaceous

Lower Cretaceous

Subdivision of the Cretaceous system according to the IUGS, as of July 2012. The Early Cretaceo...

Cretaceous Period

<div dir="ltr" style="text-align: left;" trbidi="on">
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://2.bp.blogspot.com/-zJm1W1MpKVU/U00JNcB_T2I/AAAAAAAAG3A/xmthk0_JnBk/s1600/Cretaceous+Period.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://2.bp.blogspot.com/-zJm1W1MpKVU/U00JNcB_T2I/AAAAAAAAG3A/xmthk0_JnBk/s1600/Cretaceous+Period.jpg" height="160" width="320"></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i>late Early Cretaceous (105Ma) <br>The maps below are Mollewide (oval globe) projections showing <br>global paleogeography for the past 600 million years.<br>© Ron Blakey, NAU Geology</i></td></tr>
</tbody></table>
The Cretaceous , derived from the Latin "creta" (chalk), usually abbreviated K for its German translation Kreide (chalk), is a geologic period and system from circa 145 ± 4 to 66 million years (Ma) ago. In the geologic timescale, the Cretaceous follows the Jurassic period and is followed by the Paleogene period of the Cenozoic era. It is the last period of the Mesozoic Era, and, spanning 79 million years, the longest period of the Phanerozoic Eon.<br>
<br>
</div>

Cretaceous Period

late Early Cretaceous (105Ma) The maps below are Mollewide (oval globe) projections showing globa...

Hausmannite

Hausmannite

N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Pr...

3D tsunami simulator enables highly precise tsunami forecasting

<div dir="ltr" style="text-align: left;" trbidi="on">
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://4.bp.blogspot.com/-BAk0rVyJFu0/U00BzaMGwgI/AAAAAAAAG2E/d5FpqY6PkhY/s1600/3dtsunamisim.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://4.bp.blogspot.com/-BAk0rVyJFu0/U00BzaMGwgI/AAAAAAAAG2E/d5FpqY6PkhY/s1600/3dtsunamisim.jpg" height="200" width="400"></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i>Figure 1 (a) Replicating a tsunami over a wide area extending<br> from its source area to coastal areas (b) Replicating the <br>3D behavior of a tsunami as it flows into coastal areas </i></td></tr>
</tbody></table>
Fujitsu Limited today announced that, based on its joint research with Tohoku University that began in 2012, the two have developed a 3D tsunami simulator that can replicate in fine detail the surge of water in urban areas as well as river surges caused by a tsunami. The joint research succeeded in combining a 2D tsunami-propagation simulation technology developed by Professor Fumihiko Imamura, director of the International Research Institute of Disaster Science in Tohoku University with Fujitsu's 3D fluid simulation technology. As a result, the researchers were able to accurately replicate the complex changes a tsunami undergoes as it interacts with coastal topography or buildings in urban areas, as well as the process of water surges in urban areas and rivers.<br>
<br>
</div>

3D tsunami simulator enables highly precise tsunami forecasting

Figure 1 (a) Replicating a tsunami over a wide area extending from its source area to coastal ar...

'Shuttle' technology reveals mineral formations

'Shuttle' technology reveals mineral formations

As the sonde is taken up from the bottom of the drill hole it logs the data of the surrounding ...

Hardystonite

<div dir="ltr" style="text-align: left;" trbidi="on">
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-Py6MM-2jcCM/U0u7Rn-bxzI/AAAAAAAAG1s/0Gxn3coLtsQ/s1600/0220485001088975262.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://1.bp.blogspot.com/-Py6MM-2jcCM/U0u7Rn-bxzI/AAAAAAAAG1s/0Gxn3coLtsQ/s1600/0220485001088975262.jpg" height="284" width="320"></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i>Lichtloch 25, Copper-Silver smelter (Gottesbelohnung<br> smelter; slag locality), Hettstedt, Mansfeld Basin,<br> Saxony-Anhalt, Germany<br>© Frank de Wit</i></td></tr>
</tbody></table>
<u><b>Formula:</b></u> Ca<sub>2</sub>Zn(Si<sub>2</sub>O<sub>7</sub>)<br>
<u><b>System:</b></u>    Tetragonal    <br>
<u><b>Colour:</b></u>    light brownish white, ...<br>
<u><b>Hardness:</b></u> 3 - 4<br>
<u><b>Member of:</b></u> Melilite Group<br>
<u><b>Name: </b></u>Named in 1899 by John E. Wolff after Hardyston Township, Sussex County, New Jersey, USA, locality of the Franklin orebody prior to incorporation of Franklin Borough in 1913. Hardyston Township surrounds the borough of Franklin today.<br>
</div>

Hardystonite

Lichtloch 25, Copper-Silver smelter (Gottesbelohnung smelter; slag locality), Hettstedt, Mansfel...

Río de la Plata River

<div dir="ltr" style="text-align: left;" trbidi="on">
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://4.bp.blogspot.com/-YPOyImknNWI/U0u3EIIu4lI/AAAAAAAAG1E/e1itWFhSl74/s1600/R%C3%ADo+de+la+Plata.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://4.bp.blogspot.com/-YPOyImknNWI/U0u3EIIu4lI/AAAAAAAAG1E/e1itWFhSl74/s1600/R%C3%ADo+de+la+Plata.JPG" height="212" width="320"></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i>NASA photo of the Río de la Plata looking from north to south. <br>Buenos Aires is visible on the right side near the<br> Paraná River delta. River sediments turn the <br>water brown to the vicinity of Montevideo, <br>visible on the left coast.</i></td></tr>
</tbody></table>
The Río de la Plata usually rendered River Plate in British English and the Commonwealth, and occasionally rendered [La] Plata River in other English-speaking countries — is the estuary formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay. It is a funnel-shaped indentation on the southeastern coastline of South America, about 290 kilometres (180 mi) long.<br>
<br>
</div>

Río de la Plata River

NASA photo of the Río de la Plata looking from north to south. Buenos Aires is visible on the rig...