Tidal flats of Xiamen Bay
″Bay, Fujian Province, is formed from a graben creating a submerged bay. The Jinmen Islands straddle the bay mouth enclosing broad areas of open water. Tides in the bay are semi-diurnal, with an average range of 4m and maximum range of 6.9m. Ebb speeds (0.89m/sec) are greater than flood (0.77m/sec). The slope varies between 1-2m/km.
In stratigraphic section, alternating thin layer of mud and sand, with rare occurrence of cross bedding and wave or current-formed ripples reflect normal deposition processes alternating with storm deposits. The surficial tidal flat sediments are relatively poorly sorted, comprising a mixture of sand, silty sands, clayey sands, sandy clays, and clayey silts. Gravelly sands appear on tidal flats located on the erosional coast in the north. Sand is distributed over wide areas and accounts for the majority of the sediment observed in the bay's tidal flat environment. Heavy mineral content is relatively high at 151.2mg/100g, reflecting a local sediment supply from the surrounding catchment. ″
References: Muddy Coasts of the World: Processes, Deposits, and Function, Terry R. Healy,Ying Wang,Judy-Ann Healy, 2002, Elsevier
To logg this Earthcache as "found", you have to answer following questions:
1) How high is the Ebb and flood speed (see Listing)?
2) Describe the sand of the beach: Are the grains of the sand fine grained? How is the color of the sand?
3) Waypoint 1 (beach stone): Describe the stone: How is the color of the stone? Can you see something on / in the stone?
4) If you can not go to waypoint 1, due to the flood, answer the question of waypoint 2 (stone on the way): Describe the stone: the form, the color... Is something on the stone?
Please write your answers to: spacedoc@gmx.de
As subject: The Earthcache-name or GC-code and your Geocaching-name.
According to the Earthcache-Guidelines you are allowed to log immediately after sending the answers via e-mail. If something is wrong, I will write you.
About a picture, as is customary for Earthcaches, we'd be happy, but it is not a log-requirement (please, make a picture without the stones).
For banner-fans:
html-Code:
<div align="center"><a href="http://coord.info/GC72Q85"><img width="200" height="50" border="0px" align src="https://s3.amazonaws.com/gs-geo-images/246b7841-bd66-4d89-8ddc-470ba581131a.jpg" alt="GC72Q85"/></a></div>
厦门湾滩涂
“海湾是由一个创造一个淹没的海湾的gr子组成的。金门群岛横跨广阔的开阔水域的海湾口。湾中潮汐半月昼夜，平均射程4米，最大射程6.9米。衰减速度（0.89米/秒）大于洪水（0.77/秒)。坡度在1-2米/公里之间。
在地层剖面中，泥沙交替薄层，罕见的交叉层叠和波形或电流形成的波纹反映了与风暴沉积交替的正常沉积过程。表面潮滩平坦沉积物分选相对较差，包括砂，粉砂，粘土砂，砂质粘土和粘土质淤泥的混合物。砾石沙丘出现在位于北部侵蚀海岸的潮滩上。砂分布在广阔地区，占海湾潮滩环境中大部分沉积物。重矿物质含量相对较高，为151.2毫克/100克，反映了周边集水区的当地沉积物供应。 “
参考文献： Muddy Coasts of the World: Processes, Deposits, and Function, Terry R. Healy,Ying Wang,Judy-Ann Healy, 2002, Elsevier
要将这个アースキャッシュ登录为“找到”，您必须回答以下问题：
1）雨量和洪水速度有多高（见上市）？
2）描述沙滩的沙子：砂粒是否细粒？沙的颜色如何？
3）路点1（沙滩石）：描述石头：石头的颜色是多少？你能看到石头上的东西吗？
4）如果你不能去航点1，由于洪水，回答航点2（石头在路上）的问题：描述石头：形式，颜色...石头上的东西？
请写下你的答案：spacedoc@gmx.de
作为主题：アースキャッシュ的名字和你的ジオキャッシュ的名字。
根据アースキャッシュ指南，您可以通过电子邮件发送答案后立即进行登录。如果有什么问题，我会写你的。
关于一张照片，就像アースキャッシュ习惯一样，我们很高兴，但是它不是一个日志要求（请不要用石头拍照）。
